In a certain low-pass filter, fc = 3.5 kHz. Its passband is____________? September 7, 2025 by Admin A. 3.5 kHz B. 0 Hz C. 0 Hz to 3.5 kHz D. 7 kHz ✅ The correct answer is option C.
An AF amplifier is shielded to ________________? September 7, 2025 by Admin A. Keep the amplifier cool B. Protect from rusting C. Prevent induction due to stray magnetic fields D. None of the above ✅ The correct answer is option C.
At parallel resonance, the phase angle between the applied voltage and circuit current is _____________? September 7, 2025 by Admin A. 90o B. 180o C. 0o D. None of the above ✅ The correct answer is option C.
At parallel resonance, the net reactive component circuit current is _______________? September 7, 2025 by Admin A. Capacitive B. Zero C. Inductive D. None of the above ✅ The correct answer is option B.
The positive clipper is that which removes the ____________half-cycles of the input voltage? September 7, 2025 by Admin A. Negative B. Positive C. Both positive and negative D. None of the above ✅ The correct answer is option B.
ICs are used in ______________? September 7, 2025 by Admin A. Linear devices only B. Digital devices only C. Both linear and digital devices D. None of the above ✅ The correct answer is option C.
Transformer coupling is generally employed when load resistance is______________? September 7, 2025 by Admin A. Large B. Very large C. Small D. None of the above ✅ The correct answer is option C.
For display of signal pattern _____________voltage is applied to the horizontal plates of a CRO? September 7, 2025 by Admin A. Sinusoidal B. Rectangular C. Sawtooth D. None of the above ✅ The correct answer is option C.
On which of the following voltage range settings will a voltmeter present the minimum load on a circuit? September 7, 2025 by Admin A. 1 V B. 50 V C. 500 V D. 1,000 V ✅ The correct answer is option D.
It is generally desired that a transistor should have_____________________ input impedance? September 7, 2025 by Admin A. Low B. Very low C. High D. Very high ✅ The correct answer is option C.