Related Questions

When using ohmmeter, applied voltage is to be disconnected from the circuit because
A Voltage source will increase resistance
B Current will decrease resistance
C The ohmmeter has its own internal battery
D None of the above
Starting winding of a single phase motor of a refrigerator is disconnected from the circuit by means of a
A Magnetic relay
B Thermal relay
C Centrifugal switch
D None of the above
D.C. generators are connected to the bus-bars or disconnected from them only under the floating condition
A To avoid sudden loading of the prime mover
B To avoid mechanical jerk to the shaft
C To avoid burning of switch contacts
D All above
When the excitation of an unloaded salient pole synchronous motor suddenly gets disconnected
A the motor stops
B it runs as a reluctance motor at the same speed
C it runs as a reluctance motor at a lower speed
D none of the above
After the starting winding of a single phase induction motor is disconnected from supply, it continues to run only on
A running winding
B rotor winding
C field winding
D compensating winding
In deriving ac equivalent circuit for an amplifier circuit we short circuit
A All resistors
B All transistors
C All inductors
D All capacitors
Which circuit element(s) will oppose the change in circuit current?
A Resistance only
B Inductance only
C Capacitance only
D Inductance and capacitance
Which of the following circuit elements will oppose the change in circuit current?
A Capacitance
B Inductance
C Resistance
D All of the above
In a parallel RLC circuit, the smaller reactance determines the net reactance of the circuit.
A True
B False
In a series RLC circuit, the larger reactance determines the net reactance of the circuit.
A True
B False

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