Objective Questions

Questions (1819)

#	Question	Topic	Actions
301	A parallel plate capacitor of plate area 2 m2 and plate separation 1 m stores a…	Test Compilation PHY 102 23	View
302	When DC voltage is applied to a capacitor, it:	Test Compilation PHY 102 23	View
303	A capacitor is a device used to:	Test Compilation PHY 102 23	View
304	Two capacitors of 6 F and 3 F are connected in series with a potential differen…	Test Compilation PHY 102 23	View
305	Total potential difference across the combination of three cells becomes maximu…	Test Compilation PHY 102 23	View
306	The potential difference across a 4 ohm resistor is 20 V. Assuming all the ener…	Test Compilation PHY 102 23	View
307	__________ is used for measuring potential difference.	Test Compilation PHY 102 23	View
308	Wheatstone bridge is a:	Test Compilation PHY 102 23	View
309	Consequence of motor effect is	Test Compilation PHY 102 23	View
310	There are 500 turns and 2000 turns in the primary and secondary coils of a tran…	Test Compilation PHY 102 23	View
311	An ideal transformer has 550 turns on the primary and 30 on the secondary. What…	Test Compilation PHY 102 23	View
312	In a transformer, the core is made up of soft iron in order to pass maximum	Test Compilation PHY 102 23	View
313	A 240 V a.c. source is connected across a pure 1.0 H inductor. Find the current…	Test Compilation PHY 102 23	View
314	Which of the following is not the same as watt?	Test Compilation PHY 102 23	View
315	A potential difference of 240 V is applied across a coil carrying 8 A. Calculat…	Test Compilation PHY 102 23	View
316	The potential difference required for 0.2 A in a conductor of resistance 20 ohm…	Test Compilation PHY 102 23	View
317	The current is zero in a conductor when no potential difference is applied beca…	Test Compilation PHY 102 23	View
318	When the speed at which a conductor is moved through a magnetic field is increa…	Test Compilation PHY 102 23	View
319	KCL deals with the conservation of:	Test Compilation PHY 102 23	View
320	Moving a coil in and out of a magnetic field induces	Test Compilation PHY 102 23	View
321	A 2 uF capacitor is charged to 50 V and then discharged through a 1 M-ohm resis…	Test Compilation PHY 102 23	View
322	The change in potential energy of a unit charge between two points in an electr…	Test Compilation PHY 102 23	View
323	The rate of change of potential with respect to distance is called?	Test Compilation PHY 102 23	View
324	A 1 uF and a 2 uF capacitor are connected in series across a 1000 V supply. Fin…	Test Compilation PHY 102 23	View
325	In SI units, J C-1 is equal to	Test Compilation PHY 102 23	View
326	An electron, initially at rest, is accelerated through a potential difference o…	Test Compilation PHY 102 23	View
327	The area under a current-time graph is equivalent to	Test Compilation PHY 102 23	View
328	A certain resistor dissipates 0.5 W when connected to a 3 V potential differenc…	Test Compilation PHY 102 23	View
329	A potentiometer is a device used to	Test Compilation PHY 102 23	View
330	Two capacitors each of 3 uF are joined in parallel across a battery of 15 V. Th…	Test Compilation PHY 102 23	View
331	Which of the following statements about a capacitor is incorrect?	Test Compilation PHY 102 23	View
332	If the charge stored in a capacitor is 4 C and the capacitance is 2 F, calculat…	Test Compilation PHY 102 23	View
333	Calculate the current in a capacitor having 2 V supply voltage and 3 F capacita…	Test Compilation PHY 102 23	View
334	When capacitors are connected in series, ______ remains the same.	Test Compilation PHY 102 23	View
335	A dielectric of K = 2 is inserted between the plates of a 20 uF capacitor. Its …	Test Compilation PHY 102 23	View
336	The plates of a parallel plate capacitor are 8 cm by 8 cm, with 2 mm separation…	Test Compilation PHY 102 23	View
337	When do we get maximum energy from a set of capacitors?	Test Compilation PHY 102 23	View
338	A capacitor C has a charge Q. The actual charges on its plates are:	Test Compilation PHY 102 23	View
339	A 2 uF and a 1 uF capacitor are connected in series and charged from a battery,…	Test Compilation PHY 102 23	View
340	A two farad and a four farad capacitor are connected in series. What single cap…	Test Compilation PHY 102 23	View
341	Two capacitors of 2 uF each are connected in parallel. If the p.d. is 120 V, ca…	Test Compilation PHY 102 23	View
342	A capacitor of 3.0 uF with air is filled with a dielectric (k = 2.8). The new c…	Test Compilation PHY 102 23	View
343	A parallel plate capacitor has capacitance C. If the area is doubled and the di…	Test Compilation PHY 102 23	View
344	Three capacitors each of 3 F are connected in series. What is the equivalent ca…	Test Compilation PHY 102 23	View
345	Calculate the capacitance of two plates of area 4 cm2 separated by 1 mm.	Test Compilation PHY 102 23	View
346	The capacitance of a capacitor is the ratio of:	Test Compilation PHY 102 23	View
347	A parallel plate air capacitor is made using two plates of area 0.2 m2 separate…	Test Compilation PHY 102 23	View
348	Four capacitors are connected as shown in the figure. C1 = 2 uF, C2 = 3 uF, C3 …	Test Compilation PHY 102 24	View
349	What is the value of capacitance of a capacitor which has a voltage of 4 V and …	Test Compilation PHY 102 24	View
350	Select the option that best describes a dielectric:	Test Compilation PHY 102 24	View
351	A system of two conductors separated by air or any insulating material forms:	Test Compilation PHY 102 24	View
352	The energy stored in a 10 uF capacitor when charged to 500 V is:	Test Compilation PHY 102 24	View
353	If 4 uF and 2 uF capacitors are connected in series, the equivalent capacitance…	Test Compilation PHY 102 24	View
354	A 20 uF capacitor is charged to 200 V. Its stored energy is:	Test Compilation PHY 102 24	View
355	If the separation of the plates of a parallel plate capacitor is halved, its ca…	Test Compilation PHY 102 24	View
356	Two identical conducting plates of area A are separated by distance d. A metal …	Test Compilation PHY 102 24	View
357	The effective capacitance is reduced when capacitors are connected in:	Test Compilation PHY 102 24	View
358	The resonant frequency of a circuit is 1000 kHz. If each of the capacitance and…	Test Compilation PHY 102 24	View
359	Capacitances of 15 F and 5 F are connected in parallel across a 20 V battery. W…	Test Compilation PHY 102 24	View
360	A dielectric slab is slowly inserted between the plates of a parallel plate cap…	Test Compilation PHY 102 24	View
361	1 Farad is theoretically equal to	Test Compilation PHY 102 24	View
362	Two identical capacitors, each of capacitance C, are connected in parallel and …	Test Compilation PHY 102 24	View
363	Which of the following is true of the capacitance C of a parallel plate capacit…	Test Compilation PHY 102 24	View
364	The capacitance is directly proportional to the area of?	Test Compilation PHY 102 24	View
365	The presence of a dielectric between the plates of a capacitor results in?	Test Compilation PHY 102 24	View
366	Electric field is a?	Test Compilation PHY 102 5	View
367	Energy stored in a 2000 mF capacitor charged to a potential difference of 10 V …	Test Compilation PHY 102 24	View
368	If two capacitors of 10 uF each are connected in parallel, their equivalent cap…	Test Compilation PHY 102 24	View
369	A 6 uF capacitor and a 3 uF capacitor are connected in series across an 18 V d.…	Test Compilation PHY 102 24	View
370	When a voltage of 1 kV is applied to a capacitor, the charge on the capacitor i…	Test Compilation PHY 102 24	View
371	Four 2 uF capacitors are connected in series. The equivalent capacitance is:	Test Compilation PHY 102 24	View
372	The unit of Capacitance is?	Test Compilation PHY 102 24	View
373	Four capacitors each of 4 F are connected in parallel. What is the equivalent c…	Test Compilation PHY 102 24	View
374	Capacitance is:	Test Compilation PHY 102 24	View
375	In the case of a parallel combination of capacitors, the net capacity is greate…	Test Compilation PHY 102 24	View
376	A battery is used to charge a parallel-plate capacitor, after which it is DISCO…	Test Compilation PHY 102 24	View
377	Which of the following factors does not affect the capacitance of a capacitor?	Test Compilation PHY 102 24	View
378	The capacitance of a parallel plate air capacitor depends on the following exce…	Test Compilation PHY 102 24	View
379	To obtain a high value of capacitance, the permittivity of the dielectric mediu…	Test Compilation PHY 102 24	View
380	What area of the plates of a parallel-plate capacitor gives 1 F, if the separat…	Test Compilation PHY 102 24	View
381	Calculate the resonant frequency of a series R-C-L circuit with R = 100 ohms, C…	Test Compilation PHY 102 25	View
382	A 10 uF capacitor is charged by a 24 V battery through a 400 k-ohm resistor. Af…	Test Compilation PHY 102 25	View
383	An external resistance R is connected to a cell of internal resistance r. The P…	Test Compilation PHY 102 25	View
384	If there are two bulbs connected in series and one blows out, what happens to t…	Test Compilation PHY 102 25	View
385	Four wires meet at a junction. The first carries 4 A into the junction, the sec…	Test Compilation PHY 102 25	View
386	The terminal voltage of a cell supplying energy to a circuit is usually less th…	Test Compilation PHY 102 25	View
387	When cells are connected in parallel, ...	Test Compilation PHY 102 25	View
388	Three equal resistors in series give 90 W. What is the equivalent power in para…	Test Compilation PHY 102 25	View
389	A current of 0.3 A flows for 2 minutes through a 6 V supply. Find the energy di…	Test Compilation PHY 102 25	View
390	A 20 k-ohm resistor is connected in series with a 40 k-ohm resistor. What resis…	Test Compilation PHY 102 25	View
391	'The sum of the emfs and potential differences around a closed loop equals zero…	Test Compilation PHY 102 25	View
392	In an antique automobile, a 6 V battery supplies a total of 48 W to two identic…	Test Compilation PHY 102 25	View
393	For a cell with EMF E and internal resistance r connected with an external resi…	Test Compilation PHY 102 25	View
394	Resistances of 2.0, 4.0 and 6.0 ohms and a 24 V emf device are all in parallel.…	Test Compilation PHY 102 25	View
395	When two unequal values of resistors are connected in parallel across a DC sour…	Test Compilation PHY 102 25	View
396	The rate at which electrical energy is used may be measured in:	Test Compilation PHY 102 25	View
397	Three resistors (2, 4 and 5 ohms) are connected in parallel with a potential di…	Test Compilation PHY 102 25	View
398	Four cells each of e.m.f 1.5 V are connected together in PARALLEL to form a bat…	Test Compilation PHY 102 25	View
399	The main source of internal resistance of a cell is:	Test Compilation PHY 102 25	View
400	A battery with an emf of 24 V is connected to a 6 ohm resistor. A current of 3 …	Test Compilation PHY 102 25	View

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