The function of shunt in an ammeter is to?

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1 Answer

Answer :

The function of shunt in an ammeter is to by pass the current.

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Describe procedure for calibration of ammeter with diagram.

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Description : Draw a typical electric circuit including ammeter and voltmeter.

Last Answer : The figure shows typical electric circuit including ammeter and voltmeter. Ammeter is connected in series for measurement of current. Voltmeter is connected in parallel for measurement of voltage. Fuse is use ... are used. If the electric supply is DC the DC ammeter and DC voltmeter are used.

What should be the ideal resistance of ammeter ?

Description : What should be the ideal resistance of ammeter ?

Last Answer : Ideal resistance of ammeter should be zero.

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Description : what is ammeter ?

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DC shunt motor

Description : DC shunt motor

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If field current is decreased in shunt dc motor, the speed of the motor

Description : If field current is decreased in shunt dc motor, the speed of the motor (a) remains same. (b) increases. (c) decreases. (d) none of the above.

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Description : State any four applications of DC shunt motor.

Last Answer : Applications of DC shunt motor: 1) Lathe machines 2) drilling machines 3) milling machines 4) Printing machinery 5) Paper industry 6) centrifugal and reciprocating pumps 7) blowers 8)fans

Why does the speed of a DC shunt motor decrease as the load increases?

Description : Why does the speed of a DC shunt motor decrease as the load increases?

Last Answer : Because if the load is increasing then the torque must also be increase. If not then the speed of motor will decrease.

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Description : State the use of shunt and series resistance used in extension of meter.

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Shunt compensation in an EHV line is used to

Description : Shunt compensation in an EHV line is used to (A) Improve stability. (B) Improve the voltage profile. (C) Reduce the fault level. (D) Substitute for synchronous phase modifier.

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Description : A shunt fault is characterized by (A) Increase in current, frequency and pf (B) Increase in current, reduction in frequency and pf (C) Increase in current and frequency, reduction in pf (D) Decrease in current and frequency

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A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave?

Description : A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave?

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A cumulatively compounded long shunt generator when operating as a motor would be?

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The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm...

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A shunt generator running at 1000 r.p.m. has generated e.m.f. as 200 V. If the speed increases to 1200 r.p.m...

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If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens?

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The purpose of retardation test on D.C. shunt machines is to find out?

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In a manual shunt motor starter?

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D.C. shunt motors are used for driving?

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If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will?

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For a D.C. shunt motor if the excitation is changed?

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The speed of a D.C. shunt motor can be increased by?

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The armature torque of the D.C. shunt motor is proportional to?

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As the load is increased the speed of D.C. shunt motor will?

Last Answer : As the load is increased the speed of D.C. shunt motor will reduce slightly.

The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is?

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In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be?

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In case of D.C. shunt motors the speed is dependent on back e.m.f. only because?

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In a D.C. shunt motor, speed is?

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The speed of a D.C. shunt motor more than its full-load speed can be obtained by?

Last Answer : The speed of a D.C. shunt motor more than its full-load speed can be obtained by decreasing the field current.

In D.C. shunt motors as load is reduced?

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If the field of a D.C. shunt motor gets opened while motor is running?

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Shunt capacitance is neglected while considering?

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D.C. shunt relays are made of?

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Why shunt capacitor is used?

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Draw the block diagram of regulated power supply, explain function of each block and draw waveforms of each stage.

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