Question

A sinusoidal ac voltage of amplitude 100 V is applied to a rectifying device which offers 10 Ω resistance in forward direction and infinite resistance in backward direction. A moving coil ammeter is also connected in the circuit. The reading of ammeter will be

a.

10 A

b.

5 A

c.

3.185 A

d.

14.14 A

Answer: (c).3.185 A

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. A sinusoidal ac voltage of amplitude 100 V is applied to a rectifying device which offers 10 Ω resistance in forward direction and infinite resistance in backward direction. A...

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. A variable reluctance tachometer has 180 teeth on rotor. The speed of shaft on which it is mounted in 1200 rpm. The frequency of output pulses is

Q. Assertion (A): Wien bridge can be used for measuring frequency.

Reason (R): A frequency meter for 50 Hz system has a frequency range of 40 to 60 Hz.

Q. Which of these has poor overload capacity?

Q. In 3 phase power measurement by two wattmeter method, both wattmeters had equal reading. The power factor of load is

Q. Which instrument is based on induction principle?

Q. Magnetic field intensity has the dimensions

Q. The power input and output in a device are 3650 W and 3385 W with each reading in doubt by ± 10 W. The percentage uncertainty in losses is

Q. A meter coil has a resistance of 100 Ω and a full scale deflection current of 10 mA. To convert it into a voltmeter of 0-200 V range, the series resistance should be

Q. Which of these has a magnetic brake?

Q. Two numbers are 131 ± 5 and 629 ± 3. The sum of the numbers with range of doubt is

Q. Assertion (A): Schering bridge is a low voltage bridge.

Reason (R): Schering bridge is very commonly used for measurement of capacitance.

Q. Electrostatic voltmeter is suitable only for low voltages.

Q. An accelerometer has a seismic mass of 0.05 kg and spring constant of 3 x 10⁵ N/m. If maximum displacement of mass is ± 1 mm, the maximum acceleration which can be measured is

Q. If an inductance L is connected in one arm of bridge and resistance R1, R2, R3 in other three arms

Q. A moving iron voltmeter reads 250 V when connected to 250 V dc. If connected to 250 V 50 Hz, the voltmeter reading is likely to be

Q. A single element strain gauge bridge has two fixed resistances R1 and R1 of 120 Ω each and a variable resistance which gives full deflection at 120 Ω for zero strain and 120.6 Ω for straine e. If gauge factor is 2, strain e is

Q. If eddy current damping is to be used, the disc of instrument should be

Q. The scale of moving iron instrument is linear.

Q. With a variable reluctance tachometer having 60 rotor teeth the count reads 3600 counts per minute. The speed in RPM is

Q. When measuring phase angle between two waves using a CRO, the time base generator is connected to

Recommended Subjects

Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!