MHT CET 2026 20th April Morning Shift | Current Electricity Question 3 | Physics

In meter bridge experiment, two resistances X and Y in the two gaps give a null point dividing the wire in the ratio $2 : 3$. When each resistance is increased by $30\,\Omega$, the null point divides the wire in the ratio $5 : 6$. The resistance X and Y are respectively

$20\,\Omega$ , $30\,\Omega$

$22\,\Omega$ , $33\,\Omega$

$32\,\Omega$ , $48\,\Omega$

$40\,\Omega$ , $60\,\Omega$

MHT CET 2026 20th April Morning Shift

MCQ (Single Correct Answer)

-0

Two cells of e.m.f. $E_1$ and $E_2$ ($E_1 > E_2$) are connected as shown in figure.

When a potentiometer is connected between points A and B the balancing length of potentiometer wire is $412$ cm. When same potentiometer wire is connected between points A and C the balancing length is $103$ cm. The ratio $E_1 : E_2$ is

$6 : 1$

$4 : 1$

$4 : 3$

$3 : 4$

MHT CET 2026 20th April Morning Shift

MCQ (Single Correct Answer)

-0

In the circuit shown charge q varies with time t as $q = t^2 - 5$, where q is in coulomb and t is in second. At time $t = 3$ second, voltage $V_{AB}$ in volt will be

$8$

$12$

$14$

$18$

MHT CET 2025 5th May Evening Shift

MCQ (Single Correct Answer)

-0

A 2.5 V battery is connected to a potentiometer wire. A cell of e.m.f. 1.08 V is balanced by the voltage drop across 2.16 m of wire. The length of the potentiometer wire is

2.5 m

3 m

5 m

6 m

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