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 |
Impedance is denoted by: |
- A. A
- B. Z
- C. P
- D. Q
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3 |
In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is. |
- A. Maximum
- B. Minimum
- C. Zero
- D. Negative
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4 |
At high frequency the value of reactance of capacitor will be. |
- A. Small
- B. Zero
- C. Large
- D. Infinite
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5 |
The peak value of alternating current is 5<b style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">√2 </b><span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">A. The mean square value of current will be:</span> |
- A. 5A
- B. 2.5A
- C. 5<b style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">√2A</b>
- D. 5<sup>2</sup>
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6 |
The phase angle of a series RLC circult at resonant frequency is |
- A. 1/2
- B. sigma
- C. Zero
- D. sigma /4
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7 |
The effective value of any sinusoidal alternating current or voltage is |
- A.
- B.
- C.
- D. None of the above
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8 |
An alternating voltage is given by 20 sin 157 t. Th efrequency of alternating voltage is: |
- A. 50 Hz
- B. 25Hz
- C. 100 Hz
- D. 75 Hz
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9 |
A capacitor is perfectly insulator for: |
- A. Direct current
- B. Alternating current
- C. Direct as well as alternating current
- D. None of these
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10 |
An in cudutor may store energy in |
- A. Its magnetic field
- B. Its coil
- C. Its electric field
- D. A neighboring circuit
|