1 |
In metal detector, we use. |
- A. L-C circuit
- B. R-L circuit
- C. R-C circuit
- D. RLC series circuit
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2 |
In purely resistive A.C circuit, instantaneous value of voltage and current: |
- A. Current lags behind voltage
- B. Current leads voltage by π/2
- C. Both are in Phase
- D. Voltage leads current by Pase θ=π/2
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3 |
The sum of positive and negative peak value called. |
- A. R.M.S. value
- B. P-P value
- C. Peak value
- D. Average value
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4 |
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
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5 |
The highest value reached by the voltage or current is one cycle is called: |
- A. Peak to peak value
- B. Peak value
- C. <div>Instantaneous value</div>
- D. Root mean square value
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6 |
Which consumes small power. |
- A. Inductor
- B. Resistor
- C. Motor
- D. All of these
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7 |
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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8 |
In LR circiut which one of the following statements is correct? |
- A. L and R opposes each other
- B. R value increases with frequency
- C. The inductive reactance increases with frequency
- D. The inductive reactance decreases with frequency
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9 |
The unit of impedance is. |
- A. Henry
- B. Hertz
- C. Ampere
- D. Ohm
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10 |
The combined effect of resistance and reactance is knows as. |
- A. Inductance
- B. Conductance
- C. Resistance
- D. Impedance
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