1
AP EAPCET 2022 - 4th July Morning Shift
+1
-0

A cell can supply currents of 1 A and 0.5 A via resistances of $$2.5 \Omega$$ and $$10 \Omega$$, respectively. The internal resistance of the cell is

A
$$2 \Omega$$
B
$$3 \Omega$$
C
$$4 \Omega$$
D
$$5 \Omega$$
2
AP EAPCET 2021 - 20th August Morning Shift
+1
-0

Five current carrying conductors meet at a point P. What is the magnitude and direction of the current in the fifth conductor?

A
1A from Q to P
B
1A from P to Q
C
3A from P to Q
D
2A to Q to P
3
AP EAPCET 2021 - 19th August Evening Shift
+1
-0

In a potentiometer of 10 wires, the balance point is obtained on the 6th wire. To shift the balance point to 8th wire, we should

A
increase resistance in the main circuit
B
decrease resistance in the main circuit
C
increase resistance in series with the cell whose emf is to be measured
D
decrease resistance in series with the cell whose emf is to be measured
4
AP EAPCET 2021 - 19th August Evening Shift
+1
-0

The length of germanium rod is $$0.925 \mathrm{~cm}$$ and its area of cross-section is $$1 \mathrm{~mm}^2$$. If for germanium $$n_i=2.5 \times 10^{19} \mathrm{~m}^{-3}, \propto_n=0.19 \mathrm{~m}^2 / \mathrm{V}-\mathrm{s}, \propto_e=0.39 \mathrm{~m}^2 / \mathrm{V}$$-s, then the resistance of the rod is

A
$$2.5 \Omega$$
B
$$4.0 \Omega$$
C
$$5.0 \Omega$$
D
$$10.0 \Omega$$
EXAM MAP
Medical
NEET