Which of the following is preferred to make an electromagnet?
Steel
Plastic
Stainless steel
Soft iron
A fuse wire should have
A low melting point
High melting point
Very high melting point
None of these
Which of the following is a primary cell?
Voltaic cell
Leclanche cell
Daniel Cell
All of the above
Fuse wire is an alloy of
Tin and lead
Copper and lead
Tin and copper
Lead and silver
Which mark is necessary on electric appliances?
ISI
FICC
AGMARK
KSK
Which of the following is an insulator?
Wood
Iron
Moist- air
Gold
Who discovered magnetic effect of current?
H C Oersted
Michael Faraday
Georg Simon Ohm
Flemming
What is the SI unit of charge?
Ampere
Volt
Coulomb
Henry
The thin wire in the bulb is made up of
Nichrome
Lead
Tungsten
Platinum
The instrument used to measure the electric current
Ammeter
Tribometer
Galvanometer
Voltmeter
