Class VII

When an electric current passes through a solenoid, it acts as a/an
  1. insulator
  2. electric bell
  3. resistor
  4. bar magnet
Compact fluorescent lamps (CELs) are considered better than ordinary electric bulbs because ? 
  1. CFLs reduce wastage 
  2. CFLs can be fixed in the ordinary bulb holders . 
  3. both (a) and (b) 
  4. none of the above 
Which of the following is an essential element in an electric circuit ? 
  1. switch 
  2. connecting wires 
  3. voltmeter 
  4. ammeter 
The unit to measure electric resistance is : 
  1. Joule 
  2. Ohm 
  3. Ampere 
  4. Volt 
The magnetic effect of the current was discovered by ________?
  1. Newton
  2. Joule
  3. Oersted
  4. Ohm
Time Elapsed

HR : MIN : SEC
Question Answered
0
Score out of 100
0

Get Started!

we provide the best
services to our students

AmazingCounters.com Views

 

LKG - 12th

Rs 1,999  Annual
Plan
TOP