Objective Questions
All objective questions for PHY 102
Questions (1819)
| # | Question | Topic | Actions |
|---|---|---|---|
| 1501 |
Direction of field strength at a point is
|
Test Compilation PHY 102 6 | View |
| 1502 |
Two point charges: -25µC and +50µC, 10 cm apart. Field at point P, 2 cm from ne…
|
Test Compilation PHY 102 6 | View |
| 1503 |
Strength of magnetic field of solenoid increased by adding core of
|
Test Compilation PHY 102 6 | View |
| 1504 |
If electrons flow from earth to a body, body has
|
Test Compilation PHY 102 6 | View |
| 1505 |
Electric flux maximum when angle between E and A is?
|
Test Compilation PHY 102 6 | View |
| 1506 |
Electric flux minimum when angle between E and A is?
|
Test Compilation PHY 102 6 | View |
| 1507 |
Parallel plate air capacitor: plates 0.2 m (area?), spacing 1 cm, 50V. Charge? …
|
Test Compilation PHY 102 6 | View |
| 1508 |
Rate of electrical energy use measured in
|
Test Compilation PHY 102 6 | View |
| 1509 |
Two charges repulsive force 96 N. Force when separation quadrupled?
|
Test Compilation PHY 102 6 | View |
| 1510 |
Which statement in electrostatics is incorrect?
|
Test Compilation PHY 102 6 | View |
| 1511 |
Radioactive substance half-life 2 weeks. Emits 3000 particles/min at start. Aft…
|
Test Compilation PHY 102 6 | View |
| 1512 |
In series circuit, resistance doubled. Current?
|
Test Compilation PHY 102 6 | View |
| 1513 |
emf = 16 V induced in coil L=4 H. Rate of change of current?
|
Test Compilation PHY 102 6 | View |
| 1514 |
Four 2 μF capacitors are connected in series. The equivalent capacitance is:
|
Test Compilation PHY 102 6 | View |
| 1515 |
Which of the following factors determine(s) the force exerted on a charged body…
|
Test Compilation PHY 102 6 | View |
| 1516 |
The unit of Capacitance is?
|
Test Compilation PHY 102 6 | View |
| 1517 |
Answer saved The resonant frequency of a circuit is 1000 kHz. If each of the ca…
|
Test Compilation PHY 102 6 | View |
| 1518 |
Answer saved A transformer assumed to be 100% efficient has 2500 turns at the p…
|
Test Compilation PHY 102 6 | View |
| 1519 |
Answer saved The reciprocal of resistivity is
|
Test Compilation PHY 102 6 | View |
| 1520 |
Which of the following cannot be the units of electric intensity?
|
Test Compilation PHY 102 6 | View |
| 1521 |
Wheatstone bridge is said to be balanced when the current through the galvanome…
|
Test Compilation PHY 102 6 | View |
| 1522 |
The threshold wavelength of photoelectric emission of a metal is 4000 Å. Minimu…
|
Test Compilation PHY 102 6 | View |
| 1523 |
Telescope: objective focal length 18 m, eyepiece focal length 10 cm. Angular ma…
|
Test Compilation PHY 102 6 | View |
| 1524 |
In A.C. circuits, opposition to the flow of current is generally referred to as
|
Test Compilation PHY 102 6 | View |
| 1525 |
The electric flux Φ is defined as
|
Test Compilation PHY 102 6 | View |
| 1526 |
Transformer which is 80% efficient gives output of 12 V and 4 A. Input power?
|
Test Compilation PHY 102 6 | View |
| 1527 |
The algebraic sum of changes in potential difference around any closed path equ…
|
Test Compilation PHY 102 6 | View |
| 1528 |
The magnetic field pattern produced by a coil carrying direct current is simila…
|
Test Compilation PHY 102 6 | View |
| 1529 |
The area under the current-time graph is equivalent to
|
Test Compilation PHY 102 6 | View |
| 1530 |
When cells are connected in parallel,
|
Test Compilation PHY 102 6 | View |
| 1531 |
Primary coil supplied with 45 V, secondary potential difference 450 V. Turns ra…
|
Test Compilation PHY 102 7 | View |
| 1532 |
Which is correct about flux from a point charge? I. product of E and force betw…
|
Test Compilation PHY 102 7 | View |
| 1533 |
Four capacitors each of 4 F in parallel. Equivalent capacitance?
|
Test Compilation PHY 102 7 | View |
| 1534 |
One kilowatt hour of electrical energy is the same as
|
Test Compilation PHY 102 7 | View |
| 1535 |
Parallel plate capacitor area 2000 cm², plates 1 cm apart. V₀=3000 V, decreases…
|
Test Compilation PHY 102 7 | View |
| 1536 |
Resistor 20 Ω and inductor 500 mH in series across 120 V, 50 Hz. Current?
|
Test Compilation PHY 102 7 | View |
| 1537 |
Which law relates electric flux through a surface with net enclosed charge?
|
Test Compilation PHY 102 7 | View |
| 1538 |
Point charge -30 μC at origin. Electric field at point 50 cm along x-direction?
|
Test Compilation PHY 102 7 | View |
| 1539 |
Which is true about electric dipole?
|
Test Compilation PHY 102 7 | View |
| 1540 |
Consequence of motor effect is
|
Test Compilation PHY 102 7 | View |
| 1541 |
Magnitude of induced emf is proportional to
|
Test Compilation PHY 102 7 | View |
| 1542 |
Sum of emfs and potential differences around closed loop equals zero is consequ…
|
Test Compilation PHY 102 7 | View |
| 1543 |
For any charge configuration, equipotential surface through a point is ______ t…
|
Test Compilation PHY 102 7 | View |
| 1544 |
Name given to current induced when metal sheet is pulled from a magnetic field?
|
Test Compilation PHY 102 7 | View |
| 1545 |
Electric flux is negative when angle between E and A is
|
Test Compilation PHY 102 7 | View |
| 1546 |
Straight wire length 0.20 m moves at 3.0 m/s perpendicular to B=0.10 T. Induced…
|
Test Compilation PHY 102 7 | View |
| 1547 |
Arrange forces in order of increasing strength
|
Test Compilation PHY 102 7 | View |
| 1548 |
One kilowatt hour is same as (repeat)
|
Test Compilation PHY 102 7 | View |
| 1549 |
External resistance R connected to cell of internal resistance r. Current is ma…
|
Test Compilation PHY 102 7 | View |
| 1550 |
Solenoid: 100 turns, length 75 mm, current 12 A. Magnetic induction? (repeat)
|
Test Compilation PHY 102 7 | View |
| 1551 |
Surface charge density on sphere radius 5 cm, charge 1 μC?
|
Test Compilation PHY 102 7 | View |
| 1552 |
Straight conductor length 25 cm moves at 30 m/s in B=0.4 T, resistance 0.8 Ω. C…
|
Test Compilation PHY 102 7 | View |
| 1553 |
Three capacitors each of 3 F in series. Equivalent capacitance?
|
Test Compilation PHY 102 7 | View |
| 1554 |
Current 0.3 A through lamp for 2 minutes using 6 V supply. Energy dissipated?
|
Test Compilation PHY 102 7 | View |
| 1555 |
Two bulbs in series, one blows out. Other bulb? (repeat)
|
Test Compilation PHY 102 7 | View |
| 1556 |
If magnetic flux density and current are at right angles, component of force on…
|
Test Compilation PHY 102 7 | View |
| 1557 |
Which is correct about charge q moving with velocity v in uniform B? I. FB depe…
|
Test Compilation PHY 102 7 | View |
| 1558 |
Counting rate 8000 counts/s at t=0, 1000 counts/s after 10 minutes. Decay const…
|
Test Compilation PHY 102 7 | View |
| 1559 |
From Coulomb’s law, slope of log F vs log r graph?
|
Test Compilation PHY 102 7 | View |
| 1560 |
In an RLC series phasor, we start drawing phasor from which quantity?
|
Test Compilation PHY 102 7 | View |
| 1561 |
Which is correct about application of Gauss law? I. charge distribution known; …
|
Test Compilation PHY 102 7 | View |
| 1562 |
Alternating voltage peak 80 V across 60 Ω. Current? (peak current? rms? ambiguo…
|
Test Compilation PHY 102 7 | View |
| 1563 |
Parallel plate air capacitor with constant voltage source, dielectric K=2 inser…
|
Test Compilation PHY 102 7 | View |
| 1564 |
Force on electron due to electric field equals weight of electron. Magnitude of…
|
Test Compilation PHY 102 7 | View |
| 1565 |
Car battery rated 80 A·h. Ampere-hour is unit of
|
Test Compilation PHY 102 7 | View |
| 1566 |
Potential difference required for 0.2 A in conductor of resistance 20 Ω?
|
Test Compilation PHY 102 7 | View |
| 1567 |
When alternating signal flows through a capacitor,
|
Test Compilation PHY 102 7 | View |
| 1568 |
Capacitance is:
|
Test Compilation PHY 102 7 | View |
| 1569 |
If potential difference across a resistor is doubled,
|
Test Compilation PHY 102 7 | View |
| 1570 |
In parallel combination of capacitors, net capacity is greater than
|
Test Compilation PHY 102 7 | View |
| 1571 |
Arrange forces in order of increasing strength (repeat)
|
Test Compilation PHY 102 7 | View |
| 1572 |
60 W light bulb carries 0.5 A. Total charge in one hour?
|
Test Compilation PHY 102 7 | View |
| 1573 |
According to r = mv/(Be), faster moving particles
|
Test Compilation PHY 102 7 | View |
| 1574 |
6 V battery supplies 48 W to two identical headlights in parallel. Resistance o…
|
Test Compilation PHY 102 7 | View |
| 1575 |
Which statement is NOT true of electric fields?
|
Test Compilation PHY 102 7 | View |
| 1576 |
In a coil of wire, direction of induced current caused by increasing magnetic f…
|
Test Compilation PHY 102 7 | View |
| 1577 |
Emf induced in coil depends on: I. number of turns; II. friction at suspension;…
|
Test Compilation PHY 102 7 | View |
| 1578 |
Total flux when q₁=15 μC, q₂=-17 μC inside spherical surface radius 20 cm?
|
Test Compilation PHY 102 7 | View |
| 1579 |
By how many percent is torque decreased if permanent magnets lose 5.0% of stren…
|
Test Compilation PHY 102 7 | View |
| 1580 |
Tade rubs fur on hard rubber rod, rod becomes negative. What happens?
|
Test Compilation PHY 102 7 | View |
| 1581 |
Hall voltage is directly proportional to
|
Test Compilation PHY 102 7 | View |
| 1582 |
The electrostatic force on a charge in a system of charges
|
Test Compilation PHY 102 8 | View |
| 1583 |
A battery is used to charge a parallel-plate capacitor, after which it is disco…
|
Test Compilation PHY 102 8 | View |
| 1584 |
The energy stored in a 10 μF capacitor when charged to 500 V is
|
Test Compilation PHY 102 8 | View |
| 1585 |
Currents that flow in circles inside a disc are known as
|
Test Compilation PHY 102 8 | View |
| 1586 |
Two plane mirrors are inclined to each other so as to produce eight images. Wha…
|
Test Compilation PHY 102 8 | View |
| 1587 |
If electrons flow from the earth to a body, the body is said to have
|
Test Compilation PHY 102 8 | View |
| 1588 |
A current of 0.3 A is passed through a lamp for 2 minutes using a 6 V power sup…
|
Test Compilation PHY 102 8 | View |
| 1589 |
Which gives the magnetic force F on charge q moving with velocity V in field B?
|
Test Compilation PHY 102 8 | View |
| 1590 |
Which factor does NOT affect the capacitance of a capacitor?
|
Test Compilation PHY 102 8 | View |
| 1591 |
Which is the unit for electric field strength?
|
Test Compilation PHY 102 8 | View |
| 1592 |
The potential difference required for 0.2 A in a conductor of resistance 20 Ω i…
|
Test Compilation PHY 102 8 | View |
| 1593 |
Two capacitors, each 2 μF, in parallel across 120 V. Charge on each capacitor?
|
Test Compilation PHY 102 8 | View |
| 1594 |
Out of the following statements concerning an electric field, which is NOT true?
|
Test Compilation PHY 102 8 | View |
| 1595 |
Capacitance of a parallel plate air capacitor depends on the following except:
|
Test Compilation PHY 102 8 | View |
| 1596 |
A car battery is rated at 80 A·h. An ampere-hour is a unit of:
|
Test Compilation PHY 102 8 | View |
| 1597 |
The electric flux emerging from a rectangular surface area 0.025 m² is 10 N·m²/…
|
Test Compilation PHY 102 8 | View |
| 1598 |
If 4 μF and 2 μF capacitors are connected in series, the equivalent capacitance…
|
Test Compilation PHY 102 8 | View |
| 1599 |
An electron moves in a uniform magnetic field B with velocity 10⁷ m/s. Force on…
|
Test Compilation PHY 102 8 | View |
| 1600 |
Cyclotron is used to
|
Test Compilation PHY 102 8 | View |