1
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two identical wires, carrying equal currents are bent into circular coils $A$ and $B$ with 2 and 3 turns respectively. The ratio of the magnetic fields at the centres of the coils $A$ and $B$ is

A

$4: 9$

B

$2: 3$

C

$9: 4$

D

$3: 2$

2
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A current of 4 A is passed through a square loop of side 5 cm made of a uniform manganin wire as shown in the figure. The magnetic field at the centre of the loop is

TG EAPCET 2025 (Online) 2nd May Evening Shift Physics - Moving Charges and Magnetism Question 41 English
A

$\frac{24 \sqrt{2}}{5} \times 10^{-5} \mathrm{~T}$

B

$\frac{3 \sqrt{2}}{5} \times 10^{-5} \mathrm{~T}$

C

$\frac{6 \sqrt{2}}{5} \times 10^{-5} \mathrm{~T}$

D

zero

3
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $B_V$ and $B_H$ are respectively the vertical and horizontal components of the Earth's magnetic field at a place where the angle of $\operatorname{dip}$ is $60^{\circ}$, then the total magnetic field at that place is

A

$\sqrt{3} B_H$

B

$\sqrt{3} B_v$

C

$\frac{2}{\sqrt{3}} B_v$

D

$\frac{\sqrt{3}}{2} B_H$

4
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A coil of resistance $8 \Omega$, number of turns 250 and area $120 \mathrm{~cm}^2$ is placed in a uniform magnetic field of 2 T such that the plane of the coil makes and angle of $\frac{\pi}{6}$ with the direction of the magnetic field. In a time of 100 ms , the coil is rotated until its plane becomes parallel to the direction of the magnetic field. The current induced in the coil is

A

5.25 A

B

3.75 A

C

2.75 A

D

1.25 A

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