## Quick Revision Study Materials for Class XII

Electrostatics
Current Electricity
Thermoelectricity
Electromagnetics
Electromagnetic Induction
AC Circuits

Magnetism

 Ray Optics Physical Optics
Atomic PhysicsNuclear PhysicsSemiconductor DevicesCommunication SystemReference Books in Physics Suggested by CBSE for class XI and XII students

## Direction of magnetic field due to a current carrying conductor

“How do we know the direction of magnetic field around the current carrying conductor?” Asked Nikhil Incoming search terms:direction of magnetic field around a current carrying conductorDIRECTION OF MAGNETIC FIELD IN CURRENT CARRYING CONDUCTORmagne...

## Electric Fuse – A Safety Device

• Electric Fuse is a Safety device
• It works on the principle of Joule’s law of heating
• It consists of a fuse wire made of an alloy of tin and lead, which melts and breaks

## Numerical Problems for Practice – Current electricity

1. At room temperature (27 oC) resistance of a heating element is 100 ohm. What is the temperature of the element if the resistance is found to be 117 ohm. Given, temperature coeff. of

## Electricity Practice Questions for CBSE

1. Define electric potential difference?

2. Why is an ammeter connected in series in a circuit?

3. Why is a voltmeter connected in parallel in a circuit?

4. State the law that governs the strength of the

## Class X Physics QUESTION BANK(Magnetic Effects of Current)

One mark Questions:
1. How can you show that the magnetic field produced by a given electric current in the wire decreases as the distance from the wire decreases?
2.

## Class X Physics QUESTION BANK(Magnetic Effects of Current)

One mark Questions:
1. How can you show that the magnetic field produced by a given electric current in the wire decreases as the distance from the wire decreases?
2. What is the advantage