1
MHT CET 2021 23th September Morning Shift
+1
-0

A balanced bridge is shown in the circuit diagram. The metre bridge wire has resistance $$1 \Omega \mathrm{m}^{-1}$$. The current drawn from the battery is (Internal resistance of battery is negligible)

A
0.44 A
B
0.66 A
C
0.88 A
D
0.22 A
2
MHT CET 2021 23th September Morning Shift
+1
-0

In potentiometer experiment, cells of e.m.f. '$$E_1$$' and '$$E_2$$' are connected in series $$\left(E_1>E_2\right)$$ the balancing length is $$64 \mathrm{~cm}$$ of the wire. If the polarity of $$E_2$$ is reversed, the balancing length becomes $$32 \mathrm{~cm}$$. The ratio $$\frac{E_1}{E_2}$$ is

A
$$1: 1$$
B
$$6: 1$$
C
$$3: 1$$
D
$$2: 1$$
3
MHT CET 2021 22th September Evening Shift
+1
-0

In a potentiometer experiment, the balancing length for a cell is $$240 \mathrm{~cm}$$. On shunting the cell with a resistance of $$2 \Omega$$, the balancing length becomes half the initial balancing length. The internal resistance of the cell is

A
$$1.5 \Omega$$
B
$$1 \Omega$$
C
$$0.5 \Omega$$
D
$$2 \Omega$$
4
MHT CET 2021 22th September Evening Shift
+1
-0

Kirchhoff's current and voltage law are respectively based on the conservation of

A
momentum, charge
B
energy, charge
C
charge, energy
D
charge, momentum
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