Electrical and Electronics Engineering

Important MCQ questions for GATE, ESE Engineering Service Examination, IES, PSU Examination and Study Material For Electrical and Electronics Engineering in Circuit Theory, Network Theory, Material Science, Power System, Control System, Measurement, Power Electronics, Transformer and Electrical Machine, Control System, EMT, Power Electronics, Microprocessor and Communication System.

An equipotential surface is a surface in an electric field such that all points on it are at the

A)Same potential B)Different potential C)Different frequency D)Same frequency

In a.c. voltage regulator with R-L load

A)the current leads the voltage B)current will lead or lag the voltage depending on the L/R ratio C)the voltage lags the current D)the ...

Load voltage in a d.c. chopper circuit is given by / d.c.

A)d.c. supply voltage /duty cycle B)Duty cycle X d.c. supply voltage C)Duty cycle/ d.c. supply voltage D)1/(duty cycle X d.c. supply v...

A thermistor has a resistance of 3.98 Kilo Ω at 0 °C and 0.794 Kilo Ω at 50 °C. If the relation between resistance and temperature is RT = a RO e b/T, the value of constant b is

A)2845 B)1845 C)4845 D)3845

Zener breakdown occurs due to breaking of covalent bonds by the strong electric field set up in the depletion region by the

A)Reverse coupling B)Reverse voltage C)Forward current D)Forward voltage

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