4. Current Electricity and Magnetism

4. Current Electricity and Magnetism

1. The property of positive charge to flow from a point of higher electric level to a point of lower electric level is called?

1) Potential difference
2) Current Electricity
3) Electrostatic Potential
4) magnetism

2. A lead dry cell consist -----------

1) Ammonium chloride
2) All
3) Zinc chloride
4) graphite rod

3. which cell used in modern equipments such as smart phone, laptop?

1) Lead-Acid Cell
2) Lithium ion cells
3) Dry Cell
4) Ni-Cd cell

4. which train work on electromagnet?

1) Maglev train
2) Indian train
3) All
4) Superfast Train

5. Three electric cells of potential difference 2.5 V each have been connected as a battery. The potential difference of the battery will be ------ V.

1) 7.5
2) 6.5
3) 5
4) 4.5

6. what produce due to flow of both negatively and positively charged particles in electric cells?

1) None of these
2) Electric current
3) Circuit
4) magnetism

7. Who discovered the magnetic effect of electric current in 1820?

1) J.J.Thomson
2) H.C. Oersted
3) Newton
4) Faraday

8. Who found the principle of electromagnetic induction in 1831?

1) Michael Faraday
2) Newton
3) James Clerk Maxwell
4) Robert Brown

9. Which type of current is obtained from a dry cell ?

1) DC
2) None
3) AC
4) Both AC and DC

10. What is the SI unit of electric current ?

1) Watt
2) Ampere.
3) Current
4) Volt

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