Which of the following is an insulator?
Wood
Iron
Moist- air
Gold
The unit of electric current is
Ampere
Weber
Diopter
Tesla
Fuse wire is an alloy of
Tin and lead
Copper and lead
Tin and copper
Lead and silver
Key or switch in circuit is placed
Left side of the battery
Right side of the battery
Any where in the circuit
Near the positive terminal of the bulb
The thin wire in the bulb is made up of
Nichrome
Lead
Tungsten
Platinum
The device used instead of fuse in household electric circuit is
LED
CFL
MCB
PCB
Who discovered magnetic effect of current?
H C Oersted
Michael Faraday
Georg Simon Ohm
Flemming
Which of the following is a primary cell?
Voltaic cell
Leclanche cell
Daniel Cell
All of the above
Which mark is necessary on electric appliances?
ISI
FICC
AGMARK
KSK
A battery is a group of
Only two cells
Two or more cells
Only single cell
All the above
