MEDIUM
12th Maharashtra Board
IMPORTANT
Earn 100

Explain with a neat circuit diagram how will you determine unknown resistance ‘X’ by using a meter bridge.

Important Questions on Current Electricity

HARD
12th Maharashtra Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 13 - Current Electricity>Maharashtra Board-2019>Q 3
When a resistor of 5 Ω is connected across the cell, its terminal potential difference is balanced by 150 cm of potentiometer wire and when a resistance of 10 Ω is connected across the cell, the terminal potential difference is balanced by 175 cm of the same potentiometer wire. Find the balancing length when the cell is in open circuit and the internal resistance of the cell.
HARD
12th Maharashtra Board
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 13 - Current Electricity>Maharashtra Board-2020>Q 5
Two resistances X and Y in teh two gaps of a meter-bridge gives a null point dividing the wire in the ratio 2:3. If each resistance is increased by 30 Ω, the null point divides the wire in the ratio 5:6, calculate the value of X and Y.