Electromagnetism Equations and Forces

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📚 Part 1: Symbols, Units and Multiple Choice

1. Match the correct SI unit to each physical quantity:

Force (F): _____________ Magnetic Field Strength (B): _____________

Current (I): _____________ Voltage (V): _____________

Charge (q): _____________ Velocity (v): _____________

2. Which equation correctly represents the magnetic force on a current-carrying conductor?

F = Bqv

F = BIL

V = BvL

F = BvL

3. A conductor of length 0.5 m carries a current of 3 A in a magnetic field of 0.2 T. Calculate the magnetic force:

Force = _____________ N

4. Which of the following describes electromagnetic induction?

Current creates a magnetic field

Moving conductors in magnetic fields generate voltage

Magnets always attract metal objects

Electric motors use batteries only

✏️ Part 2: Calculations and Problem Solving

5. A charged particle (q = 2 × 10⁻⁶ C) moves at 500 m/s through a magnetic field of 0.1 T. Calculate the magnetic force on the particle using F = Bqv:

Force = _____________ N

6. A conductor moves through a magnetic field at 4 m/s. If the magnetic field strength is 0.3 T and the conductor length is 2 m, calculate the induced voltage using V = BvL:

Voltage = _____________ V

7. Rearrange the equation F = BIL to solve for magnetic field strength (B), then calculate B when F = 6 N, I = 2 A, and L = 1.5 m:

B = _____________ T