Electro- magnetism questions | form six Physics
Find Electro- magnetism examination questions, form six Physics in acaproso.com
| # | Question |
|---|---|
| 1 | State the condition which makes the magnetic force on a moving charge in a magentic field to be maximum. Short answers |
| 2 | Determine the magnitude of force experienced by a stationary charge in a uniform magnetic field. Short answers |
| 3 | At which position of the rotating coil in the magnetic field , the induced e.m.f is zero? Give a reason. Short answers |
| 4 | Use mathematical expression to justify the statement that there will be no change in the kinetic energy of a charge particle which enters a uniform magnetic field when its initial velocity is directed parllel to the field. Mathematical Calculation |
| 5 | What is meant by the term Ballistic galvanometer? Short answers |
| 6 | State two conditions to be fulfilled for a galvanometer to be used as a ballistic galvanometer. Short answers |
| 7 | Consider a small flat coil which has N turns of area A and whose plane is perpendicular to a magnetic field of flux density B. If the search coil is connected to the ballistic galvanometer and the total resistance of the circuit is R, use the laws of electromagnetic induction to show that the charge delivered to the galvanometer does not depend on how long it takes to remove the search coil from the field. Mathematical Calculation |
| 8 | A circular coil of 300 turns has a radius of 10 cm and carries a current of 7.5A. Calculate the magnetic field at:
Mathematical Calculation |
| 9 | Mention the three magnetic materials and briefly explain each one. Short answers |
| 10 | Give the differences between three magnetic materials in terms of their magnetic susceptibility. Short answers |
Acaproso Login