Everyday Science MCQs

Correct answer B. Electromagnetic waves

Correct answer D. Electric and magnetic fields moving perpendicular to each other

Correct answer A. γ-rays

Correct answer A. It changes its direction again and again

Correct answer B. 2 V

Correct answer D. It weakens it

Correct answer B. Very low damping

Correct answer C. A circle in a plane perpendicular to the field

Correct answer D. Use a very strong magnetic field

Correct answer A. In series with the circuit

Correct answer A. When the balance point is close to the middle of the wire

Correct answer A. Current sensitivity

Correct answer C. C/BAN

Correct answer C. 12Ω

Correct answer C. B = μ₀nI

Correct answer A. 4π × 10⁻⁷ Wb A⁻¹ m⁻¹

Correct answer C. A helix

Correct answer D. Magnetic flux = flux density × area

Correct answer D. τ = NIAB

Correct answer A. A charge in motion