SSC JE Electrical 2019 with solution SET-1
 Split-phase, capacitor, and shaded-pole single-phase motors classified as:

Un-excited synchronous motors
A.C. series motors
1-phase induction motors
Repulsion motors

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SSC JE Electrical 2019 with solution SET-1
If the field of the synchronous motor is under excited the power factor will be:

Unity
Leading
Lagging
Zero

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SSC JE Electrical 2019 with solution SET-1
 The resistive component of the rotor with resistance R2 offered to the backward rotating flux wave in a single-phase motor runs with slip s is given as

R2 ⁄ S
R2 ⁄ (1 − S)
R2 ⁄ (1 + S)
R2 ⁄ (2 − S)

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SSC JE Electrical 2019 with solution SET-1
 Which motor is referred to as a universal motor?

Single-phase induction
Shunt
Synchronous
Series

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SSC JE Electrical 2019 with solution SET-1
 H = ____is the expression for the magnetic field due to an infinite linear current-carrying conductor

(μI ⁄ 2r) A/m
(I ⁄ 2r) A/m
(μI ⁄ 2Πr) A/m
(I ⁄ 2Πr) A/m

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