12th Class Physics Chapter 16 Alternating Current Preparation Online Test

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.#	Question	Answer
1	The velocity of an oscillating charge as it moves to and fro along a wire is.	A. Changing B. Constant C. Infinite D. zero
2	Average value of current and voltage over a complete cycle is.	A. Positive B. Negative C. Zero D. Infinite
3	In Series resonance circuit the impedance of circuit art resonance frequency, is	A. Maximum B. Minimum C. It is unequal to R D. None of above
4	In RLC series circuit at resonance the phase difference between capacitor and inductor reactance is.	A. 90^o B. 270^o C. 0^o D. 180^o
5	If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.	A. Half B. Two C. Four times D. One fourth
6	In three phase A.C supply coils are inclined at an angle of.	A. 0^o B. 90^o C. 120^o D. 80^o
7	The most common source of an A.C. Voltage is.	A. Motor B. Cell C. Generator D. Thermo couple
8	In three phase A.C. generator the phase difference between each pair of coil is.	A. 45^o B. 90^o C. 120^o D. 60^o
9	At high frequency, the current through a capacitor is	A. Small B. Infinity C. Zero D. Large
10	In frequency modulation, the amplitude of carrier waves is	A. Increases B. Remains constant C. Decreases D. None of these

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Second Year Physics Chapter 16 Online MCQ Test for 2nd Year Physics Chapter 16 Alternating Current Preparation

FSC Part 2 Physics Chapter 16 Test

FSC Part 2 Physics Chapter Wise Test (English Medium)

MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 16 Online MCQ's Test"

Physics FSC Part 2 Chapter 16 Online MCQ's Test

The phase difference between the current and voltage at resonce is:

The most common source of an A.C. Voltage is.

An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is:

The value of capacitive reactance is given by

The main reason for world wide use of A.C is because:

The reactance is the ratio of

when an inductor comes close to a metallic object, its inductance is.

Vrms =

In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.

Impedance is denoted by:

The circuit in which current and voltage are in phase, the power factor is:

The unit of impedance is.

If Vrms be the root mean square value of emf then its peak to peak value is given by

The peak value of alternating current is 5√2 A. The mean square value of current will be:

The velocity of an oscillating charge as it moves to and fro along a wire is.

The slope of q-t curve at any instant of time gives.

The circuit which compares the two voltages is.

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FSC Part 2 Physics Chapter 16 Online Test MCQ's

Top Scorers Of Chapter 0 "Physics FSC Part 2 Chapter 16 Online MCQ's Test" MCQ`s Test

FSc Part II Physics Chapter 0 Important MCQ's

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FSC Part 2 Physics
Chapter 16 Test

FSC Part 2 Physics Chapter Wise Test
(English Medium)

If V_rms be the root mean square value of emf then its peak to peak value is given by