Electronics | Practice MCQs Physics for Mdcat

A \( E = \frac{1}{2\pi r} \cdot \frac{\Delta \phi}{\Delta t} \) B \( E = 2\pi r \cdot \frac{\Delta \phi}{\Delta t} \) C \( E = \frac{1}{3\pi r} \cdot \frac{\Delta \phi}{\Delta t} \) D \( E = 2\pi r^2 \cdot \frac{\Delta \phi}{\Delta t} \)

A \( E = \frac{1}{B} 2\pi r \) B \( B = \frac{\mu_0}{2\pi r} \times \epsilon_0 \frac{\Delta \phi_e}{\Delta t} \) C \( B = \frac{\mu_0}{\pi r} \times \epsilon_0 \frac{\Delta \phi_e}{\Delta t} \) D None of these

A \( \frac{1}{4\sqrt{\epsilon_0 - 1}} \) B \( \frac{1}{e^2 \sqrt{e^{10} - 1}} \) C \( \frac{1}{\sqrt{\epsilon_0 \mu_0}} \) D \( \frac{\epsilon_0}{\sqrt{\mu_0}} \)

A Magnetic field B Perpendicular C Permeability D None of these

A Magnetic field B Charge C Direction D None of these

A Light B Strength C Sound D None of these

A Longitude B Magnetic permeability C Electric field D None of these