1
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A capacitor of capacitance $2 \mu \mathrm{~F}$ is charged with the help of a 60 V battery. After disconnecting the battery, if this capacitor is connected in parallel with another uncharged capacitor of capacitance $l \mu \mathrm{~F}$, then the potential difference across the plates of $2 \mu \mathrm{~F}$ capacitor is

A

30 V

B

60 V

C

40 V

D

20 V

2
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The readings of the voltmeter and ammeter in the circuit shown in the diagram are respectively

AP EAPCET 2025 - 26th May Evening Shift Physics - Current Electricity Question 3 English

A

$5 \mathrm{~V}, 3 \mathrm{~A}$

B

$7 \mathrm{~V}, 3 \mathrm{~A}$

C

$5 \mathrm{~V}, 1 \mathrm{~A}$

D

$7 \mathrm{~V}, 1 \mathrm{~A}$

3
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When two identical batteries of internal resistance $1 \Omega$ each are connected in series across a resistor $R$, the rate of heat produced in $R$ is $P_1$. When the same batteries are connected in parallel across $R$, the rate of heat produced is $P_2$. If $P_1=2.25 P_2$, then the value of $R$ is

A

$2 \Omega$

B

$4 \Omega$

C

$10 \Omega$

D

$12 \Omega$

4
AP EAPCET 2025 - 26th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The magnetic field at the centre of a long solenoid having 400 turns per unit length and carrying a current ' $i$ ' is $6.24 \times 10^{-2} \mathrm{~T}$. The magnetic field at the centre of another long solenoid having 200 turns per unit length and carrying a current $\frac{i}{2}$ is

A

$1.56 \times 10^{-2} \mathrm{~T}$

B

$2.4 \times 10^{-2} \mathrm{~T}$

C

$26 \times 10^{-2} \mathrm{~T}$

D

$2.6 \times 10^{-2} \mathrm{~T}$