1
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

Which of the following graphs represents the correct variation of inductive reactance $X_L$ with angular frequency $\omega$ ?

A
VITEEE 2024 Physics - Alternating Current Question 1 English Option 1
B
VITEEE 2024 Physics - Alternating Current Question 1 English Option 2
C
VITEEE 2024 Physics - Alternating Current Question 1 English Option 3
D
VITEEE 2024 Physics - Alternating Current Question 1 English Option 4
2
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

In an electric circuit, a capacitor of reactance $55 \Omega$ is connected across the source of 220 V . The value of displacement current is

A
2 A
B
4 A
C
6 A
D
8 A
3
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

The primary of a transformer has 400 turns while the secondary has 2000 turns. If the power output from the secondary at 1000 V is 12 kW . The resistance of the primary is $0.2 \Omega$ and that of the secondary is $2 \Omega$. If the efficiency of the transformer is $80 \%$, then the power loss in the primary is

A
288 W
B
1125 W
C
2000 W
D
725 W
4
VITEEE 2021
MCQ (Single Correct Answer)
+1
-0

The alternating current in a circuit is given by $$I=50 \sin 314 t$$. The peak value and frequency of the current are

A
$$I_0=25 \mathrm{~A}$$ and $$f=100 \mathrm{~Hz}$$
B
$$I_0=50 \mathrm{~A}$$ and $$f=50 \mathrm{~Hz}$$
C
$$I_0=50 \mathrm{~A}$$ and $$f=100 \mathrm{~Hz}$$
D
$$I_0=25 \mathrm{~A}$$ and $$f=50 \mathrm{~Hz}$$
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