1
AP EAPCET 2022 - 5th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

In the given circuit values of $$I_1, I_2, I_3$$ are respectively

AP EAPCET 2022 - 5th July Morning Shift Physics - Current Electricity Question 1 English

A
1.364 A, 6.278 A, 5.91 A
B
$$1.97 \mathrm{~A}, 3.56 \mathrm{~A}, 2.784 \mathrm{~A}$$
C
$$-0.327 \mathrm{~A}, 5.28 \mathrm{~A}, 3.197 \mathrm{~A}$$
D
$$1.523 \mathrm{~A}, 4.396 \mathrm{~A}, 1.63 \mathrm{~A}$$
2
AP EAPCET 2022 - 5th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

The resistance of wire at $$0^{\circ} \mathrm{C}$$ is $$20 \Omega$$. If the temperature coefficient of the resistance is $$5 \times 10^{-3}{ }^{\circ} \mathrm{C}^{-1}$$. The temperature at which the resistance will be double of that at $$0^{\circ} \mathrm{C}$$ is

A
$$10^{\circ} \mathrm{C}$$
B
$$200^{\circ} \mathrm{C}$$
C
$$250^{\circ} \mathrm{C}$$
D
$$300^{\circ} \mathrm{C}$$
3
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

The electrons take $$40 \times 10^3$$ s to dirift from one end of a metal wire of length 2 m to its other end. The area of cross-section of the wire is $$4 \mathrm{~mm}^2$$ and it is carrying a current of 1.6 A. The number density of free electrons in the metal wire is

A
$$8 \times 10^{28} \mathrm{~m}^{-3}$$
B
$$6 \times 10^{28} \mathrm{~m}^{-3}$$
C
$$4 \times 10^{28} \mathrm{~m}^{-3}$$
D
$$5 \times 10^{28} \mathrm{~m}^{-3}$$
4
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

The current 'I' in the circuit shown in the figure is

AP EAPCET 2022 - 4th July Evening Shift Physics - Current Electricity Question 3 English

A
$$\varepsilon/R$$
B
$$-\varepsilon/R$$
C
$$2\varepsilon/R$$
D
$$-2\varepsilon/R$$
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