4800 cal
6000 cal
2400J
240k cal
6000J
Correct answer is E
Heat energy = Elect. energy = Ivt
= 5 x 6 x 200
= 6,000J
Why is it impossible for the lines of force of an electric field to cross one another?
like charges repel each other
a charged particle is deflected by an eletric field
like charges are arranged on the same line of force
a positively charged particle can travel in only one direction at any time
none of these is correct
Correct answer is D
No explanation has been provided for this answer.
On an a.c generator, which of the following does not apply?
field magnet
commutator
armature
slip rings
carbon brushes
Correct answer is B
No explanation has been provided for this answer.
10 ohms
1 ohms
zero
20 ohms
infinite
Correct answer is E
Capacitor has an infinite resistance to D.C.
In order to convert a galvanometer into an ammeter
a low resistance shunt is connected in parallel
a low resistance shunt is connected in series
a medium resistance shunt is connected in series
a high resistance shunt is connected in parallel
a high resistance shunt is connected in series
Correct answer is A
No explanation has been provided for this answer.