two parallel conductors are carrying the current in the same
direction.which of the following statements is true?
(a)there is arepelling force between the conductors
(b)the force increases when the distance between the
conductors is increased
(c)there is an attaracting force between the conductors
(d)the force increases when the distance between the
conductors is decreased
To prevent the mal operation of a differentially connected
relay while energizing a transformer, the relay restraining
coil is baised with
(a)second harmonic current
(b)fifth harmonic current
(c)third harmonic current
(d)seventh harmonic current
it is difficult to interrupt a capacitive current because
(a)it has a leading power factor
(b)current magnitude is very small
(c)the restriking voltage can be high
(d)stored energy in the capacitor is high
HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST.
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