Radio Waves Multiple Choice Questions (MCQ) PDF - 104

MCQ 516: In FM, frequency of modulated wave varies with

1. amplitude
2. time
3. wavelength
4. energy

MCQ 517: Device used to store energy in electrical circuits is

1. resistor
2. inductor
3. capacitor
4. diode

MCQ 518: In an electric field, energy per unit positive charge is

1. voltage
2. current
3. frequency
4. resistance

MCQ 519: If current of 20 mA is passing through op-amp and voltage drop across series resistor is 10 V then value of resistance is

1. 500 Ω
2. 400 Ω
3. 300 Ω
4. 200 Ω

MCQ 520: If a spinster staring from rest has acceleration of 5 ms^-2 during 1st 2.0 s of race then her velocity after 2 s is

1. 20 ms^-1
2. 10 ms^-1
3. 15 ms^-1
4. 5 ms^-1