dynamo
telephone
transformer
none of these
Answer is Right!
Answer is Wrong!
electricity
2. Which one of the following is the best conductor of electricity?
Mica
Copper
Gold
Silver
Answer is Right!
Answer is Wrong!
Detailed SolutionWhich one of the following is the best conductor of electricity?
3. The purpose of Choke in tubelight is ________.
to decrease the current
to increase the current
to decrease the voltage momentarily
to increase the voltage momentarily
Answer is Right!
Answer is Wrong!
Detailed SolutionThe purpose of Choke in tubelight is ________.
4. Which one of NTPC plants is not gasbased ?
Auraiya
Aonla
Dadri
Tanda
Answer is Right!
Answer is Wrong!
5. The device used to produce electric current is called :
Galvanometer
Motor
Ammeter
Generator
Answer is Right!
Answer is Wrong!
Detailed SolutionThe device used to produce electric current is called :
6. A device which converts electrical energy into mechanical energy Is
dynamo
generator
induction coil
motor
Answer is Right!
Answer is Wrong!
Detailed SolutionA device which converts electrical energy into mechanical energy Is
7. Which one of the following sets makes the terminals of the ordinary torch cell ?
Zinc - Carbon
Copper - Zinc
Zinc - Cadmium
Carbon - Copper
Answer is Right!
Answer is Wrong!
Detailed SolutionWhich one of the following sets makes the terminals of the ordinary torch cell ?
8. Of the two bulbs in a house, one glows brighter than the other. Which of the two has a larger resistance?
The dim bulb
The brighter bulb
Both have the same resistance
The brightness does not depend on the resistance
Answer is Right!
Answer is Wrong!
9. The best conductor of electricity amongst the following is
Aluminium
Copper
Silver
Gold
Answer is Right!
Answer is Wrong!
Detailed SolutionThe best conductor of electricity amongst the following is
10. A diode can be used to
amplify electrical signal
convert alternating current to direct current
produce electrical signal
produce gamma rays
Answer is Right!
Answer is Wrong!