The magnetic field within a long, straight solenoid with a circular cross section and…
Physics · JEE Advanced · NTA Exams — Electromagnetic Induction and Alternating Currents
The magnetic field within a long, straight solenoid with a circular cross section and radius R is increasing at a rate of dB/dt.
The magnitude of the induced electric field inside the solenoid at a distance r1 from its axis is
- \(\frac{r_{1}}{2} \frac{\mathrm{~dB}}{\mathrm{dt}}\)
- \(\mathrm{r}_{1} \frac{\mathrm{~dB}}{\mathrm{dt}}\)
- \(\frac{3 \mathrm{r}_{1}}{2} \frac{\mathrm{~dB}}{\mathrm{dt}}\)
- \(\frac{\mathrm{r}_{1}}{\sqrt{2}} \frac{\mathrm{~dB}}{\mathrm{dt}}\)
Answer
(A) r_ 1 2 ~dB dt
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- An e.m.f. of 15 volt is applied in a circuit containing 5 henry inductance and 10 ohm resistance. The ratio…
- Figure (i) shows a conducting loop being pulled out of a magnetic field with a speed v . Which of the four…
- A 50 volt potential difference is suddenly applied to a coil with L = 5 × 10 –3 h bmenry and R = 180 ohm. The…
- Two concentric and coplanar coils have radii a and b (>>a) as shown in figure. Resistance of the inner coil…
- A light disc made of aluminium (a non-magnetic material) is kept horizontally and is free to rotate about its…
- A coil has an inductance of 0.7 H and is joined in series with a resistance of 220 Ω . When an alternating…
- A thin semicircular conducting ring of radius R is falling with its plane vertical in horizontal magnetic…
- A series R-C circuit is connected to AC voltage source. Consider two cases; ( A ) when C is without a…
More Electromagnetic Induction and Alternating Currents questions · Browse all practice questions