Which of the following heating element has the lowest operating temperature?

SSC JE Electrical 2019 with solution SET-2
Which of the following heating element has the lowest operating temperature?

Kanthal

Nichrome

Graphite

Eureka

Kanthal

Nichrome

Graphite

Eureka

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SSC JE Electrical 2019 with solution SET-2
If the AC voltage and current are given by the following expressions?
v = 200sin (314t — 60°)
i = 50sin (720t), then what is the phase relation between them?

Can’t be determined

Voltage leads current by 60°

Voltage lags current by 60°

Voltage and current are in phase

Can’t be determined

Voltage leads current by 60°

Voltage lags current by 60°

Voltage and current are in phase

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SSC JE Electrical 2019 with solution SET-2
The urban service speed-time curve has no

Free-running period

Coasting period

Acceleration period

Braking period

Free-running period

Coasting period

Acceleration period

Braking period

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SSC JE Electrical 2019 with solution SET-2
Which of the following motors can be connected across a single-phase AC supply?

Differential compound motor

DC Series Motor

DC shunt motor

Cumulative compound motor

Differential compound motor

DC Series Motor

DC shunt motor

Cumulative compound motor

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SSC JE Electrical 2019 with solution SET-2
If ‘V’ is the voltage phasor and ‘I’ is the current phasor, then VI represents

Reactive power

Active power

Total power

Apparent power

Reactive power

Active power

Total power

Apparent power

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SSC JE Electrical 2019 with solution SET-2
If two impedances are given as Z1 = 20∠60° and Z2 = 5∠30°, then Z1/Z2 = ?

100∠30°

5∠30°

100∠120°

4∠30°

100∠30°

5∠30°

100∠120°

4∠30°

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SSC JE Electrical 2019 with solution SET-2

SSC JE Electrical 2019 with solution SET-2 Which of the following heating element has the lowest operating temperature?

SSC JE Electrical 2019 with solution SET-2 If the AC voltage and current are given by the following expressions?v = 200sin (314t — 60°)i = 50sin (720t), then what is the phase relation between them?

SSC JE Electrical 2019 with solution SET-2 The urban service speed-time curve has no

SSC JE Electrical 2019 with solution SET-2 Which of the following motors can be connected across a single-phase AC supply?

SSC JE Electrical 2019 with solution SET-2 If ‘V’ is the voltage phasor and ‘I’ is the current phasor, then VI represents

SSC JE Electrical 2019 with solution SET-2 If two impedances are given as Z1 = 20∠60° and Z2 = 5∠30°, then Z1/Z2 = ?

SSC JE Electrical 2019 with solution SET-2
Which of the following heating element has the lowest operating temperature?

SSC JE Electrical 2019 with solution SET-2
If the AC voltage and current are given by the following expressions?
v = 200sin (314t — 60°)
i = 50sin (720t), then what is the phase relation between them?

SSC JE Electrical 2019 with solution SET-2
The urban service speed-time curve has no

SSC JE Electrical 2019 with solution SET-2
Which of the following motors can be connected across a single-phase AC supply?

SSC JE Electrical 2019 with solution SET-2
If ‘V’ is the voltage phasor and ‘I’ is the current phasor, then VI represents

SSC JE Electrical 2019 with solution SET-2
If two impedances are given as Z1 = 20∠60° and Z2 = 5∠30°, then Z1/Z2 = ?