A voltmeter is connected in a _____________ with the circuit component across which potential difference is to be measured? September 7, 2025 by Admin A. Parallel B. Series C. Series or parallel D. None of the above ✅ The correct answer is option A.
A galvanometer in series with a high resistance is called_______________? September 7, 2025 by Admin A. An ammeter B. A voltmeter C. A wattmeter D. None of the above ✅ The correct answer is option B.
For frequencies above the resonant frequency , a series LC circuit behaves as a ____________load? September 7, 2025 by Admin A. Resistive B. Inductive C. Capacitive D. None of the above ✅ The correct answer is option B.
For germanium transistor amplifier, VCE should_______________for faithful amplification? September 7, 2025 by Admin A. Be zero B. Be 0.2 V C. Not fall below 0.7 V D. None of the above ✅ The correct answer is option C.
If the load current drawn by unregulated power supply increases, the d.c. output voltage______________? September 7, 2025 by Admin A. Increases B. Decreases C. Stays the same D. None of the above ✅ The correct answer is option B.
A certain voltage divider consists of two 12 kΩ resistors in series. Which of the following load resistors will have the most effect on the output voltage? September 7, 2025 by Admin A. 1 MΩ B. 24 kΩ C. 18 kΩ D. 12 kΩ ✅ The correct answer is option D.
The maximum a.c. power output from a class A power amplifier is 10 W. What should be the minimum power rating of the transistor used ? September 7, 2025 by Admin A. 10 W B. 15 W C. 5 W D. 20 W ✅ The correct answer is option D.
The switch that has the fastest speed of operation is ____________ switch? September 7, 2025 by Admin A. Electronic B. Mechanical C. Electromechanical D. None of the above ✅ The correct answer is option A.
The noise factor of an ideal amplifier expressed in db is_____________? September 7, 2025 by Admin A. 0 B. 1 C. 1 D. 10 ✅ The correct answer is option A.
_____________coupling provides the maximum voltage gain? September 7, 2025 by Admin A. RC B. Transformer C. Direct D. Impedance ✅ The correct answer is option B.