Anyone can help with engineering question????

Posted on 2015-09-16 06:04:00 in Engineering by ANDREW

If the voltage is held constant and the circuit resistance is halved, the ciruit current will
a) halve
b) Decrease to zero
c) remain constant
d) Double

A low circuit resistance will cause
a) The current to fall to zero
b) A low current
c) A high current
d) A high voltage drop

A high circuit resistance will cause a
a) Low voltage drop
b) Low current
c) High current
d) Short current

The resistance of a circuit that takes 2.5A of current when 50V is applied is
A) 20 ?
B) 10 ?
C) 500 ?
D) 40 ?

The supply value (v supply) for a circuit that takes 250mA of current when a resistance of 100 ? is connected across it is
a) 250v
b) 2.5v
c) 5v
d) 25v

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