✓ Board-verified
Physics · 2024 · 1 mark
CBSE 2024 · Region 4 · Set 1 · Q8
A circular loop A of radius R carries a current I. Another circular loop B of radius r(=R/20) is placed concentrically in the plane of A. The…
A circular loop $\displaystyle A$ of radius $\displaystyle \mathrm{R}$ carries a current $\displaystyle I$. Another circular loop $\displaystyle B$ of radius $\displaystyle r\left(=\frac{\mathrm{R}}{20}\right)$ is placed concentrically in the plane of $\displaystyle A$. The magnetic flux linked with loop B is proportional to
Official answer
(A)
R
All Moving Charges and Magnetism questions2024 question paperNCERT solutions: Moving Charges and MagnetismPractice Moving Charges and Magnetism →
More from Moving Charges and Magnetism
- A 2.0 cm segment of wire, carrying 5.0 A current in positive y-direction lies along y -axis, as shown in the figure. The magnetic field at a point (3…2024
- Two thin long parallel wires A and B are separated by a distance r and carry current I each in the same direction. The force per unit length exerted…2023
- Derive an expression for the magnetic field B, due to a circular coil of N turns, each of radius r carrying current I, at a distance ' x ' from the…2026
- Assertion: A proton and an electron enter a uniform magnetic field B with the same momentum p such that p is perpendicular to B. They describe…2024
- Beams of electrons and protons move parallel to each other in the same direction. They2023
- (i) A particle of mass m and charge q is moving with a velocity v in a magnetic field B as shown in the figure. Show that it follows a helical path.…2024
- Figure shows a narrow beam of electrons entering with a velocity of 3 × 10^7 m / s, symmetrically through the space between two parallel horizontal…2026
- A particle of mass m and charge q moving with a uniform velocity v=v_0 x i+v_0 y j enters a region with a magnetic field B=B_0 j. After some time, an…2023
CBSE Class 12 Physics past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.