Electricity and Magnetism

Electricity and Magnetism

Easy Questions
Moderate Questions

Physics

Mechanics
Heat
Sound
Light
Electricity and Magnetism
Modern Physics
Electronic devices & Communication system
Physics miscellaneous
  1. What is the source of electrical energy in an artificial satellite ?








  1. View Hint View Answer Discuss in Forum

    Solar cell is the source of electrical energy in an artificial satellite. Artificial satellites possess large' photoelectric panels' or 'Solar panels' around them to capture the sunlight available directly in the space to be converted into electricity from sunlight .The energy captured can be stored in batteries to be used if the satellite comes under the shadow of the Earth.So,solar cells are largely used for generating electricity in artificial satellites

    Correct Option: A

    Solar cell is the source of electrical energy in an artificial satellite.

  1. An electron volt is equal to








  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: D

    NA

  1. A wire is bent in the form of uniform circular ring. A and B are two points on the ring such that AOB = 60°, where O is the center of ring. If the equivalent resistance across A and B is 5. what is the resistance of whole wire?








  1. View Hint View Answer Discuss in Forum

    N/A

    Correct Option: B

    N/A

  1. What is the order of magnitude of electric resistance of the human body (dry) ?








  1. View Hint View Answer Discuss in Forum

    Human body has different resistances, when dry, resistance is 100, 000 ohms. When wet because of sweat or water, resistance is only 1,000 ohms.

    Correct Option: B

    Human body has different resistances, when dry, resistance is 100, 000 ohms. When wet because of sweat or water, resistance is only 1,000 ohms.

  1. Domestic electrical wiring is basically a








  1. View Hint View Answer Discuss in Forum

    In a parallel circuit, the voltage across each of the components is the same, and the total current is the sum of the currents through each component. The wiring for most homes is parallel. In parallel circuit each branch receives equal current. If one branch in the circuit is broken, electric current will still flow in other branches.

    Correct Option: B

    In a parallel circuit, the voltage across each of the components is the same, and the total current is the sum of the currents through each component. The wiring for most homes is parallel. In parallel circuit each branch receives equal current. If one branch in the circuit is broken, electric current will still flow in other branches.