1
AP EAPCET 2025 - 27th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If a wire of length ' $L$ ' carrying a current ' $i$ ' is bent in the shape of a semi-circular arc as shown in the figure, then the magnetic field at centre of the arc is

AP EAPCET 2025 - 27th May Morning Shift Physics - Moving Charges and Magnetism Question 1 English

A
$\frac{\pi \mu_0 i}{4 L}$
B
$\frac{\pi \mu_0 i}{2 L}$
C
$\frac{\mu_0{ }^j}{2 \pi L}$
D
$\frac{\mu_0 i}{4 \pi L}$
2
AP EAPCET 2025 - 27th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A galvanometer having 30 divisions has a current sensitivity of $0.0625 \frac{d i \nu}{\mu A}$. If it is converted into a voltmeter to read a maximum of 6 V , then the resistance of that voltmeter is

A

$7.5 \mathrm{k} \Omega$

B

$12.5 \mathrm{k} \Omega$

C

$6 \mathrm{k} \Omega$

D

$5 \mathrm{k} \Omega$

3
AP EAPCET 2025 - 27th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the given figure shows the relation between magnetic field ( $B$-along $Y$-axis) and magnetic intensity ( $H$-along $X$-axis) of a ferromagnetic material, then the point that represents coercivity of the material is

AP EAPCET 2025 - 27th May Morning Shift Physics - Magnetism and Matter Question 1 English
A

$P$

B

$Q$

C

$R$

D

$S$

4
AP EAPCET 2025 - 27th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A coil having 100 square loops each of side 10 cm is placed such that its plane is normal to a magnetic field, which is changing at a rate of $0.7 \mathrm{Ts}^{-1}$. The emf induced in the coil is

A

0.2 V

B

0.4 V

C

0.7 V

D

1 V