MODEL QUESTIONS (IPE PATTERN)
Andhra Pradesh Board Physics Solutions for Exercise - MODEL QUESTIONS (IPE PATTERN)
Simple step-by-step solutions to MODEL QUESTIONS (IPE PATTERN) questions of Current Electricity from Intermediate Second Year Physics. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from MODEL QUESTIONS (IPE PATTERN) with Hints & Solutions
Two light bulbs, one of and another of are connected in series. One bulb burnt out instantaneously. Which one was burnt and why?
A cylindrical metallic wire is stretched to increase its length by . Calculate the percentage change (in ) in resistance.
Two wires and of same length and same material, have their cross-sectional areas in the ratio . What would be the ratio of heat produced in these wires when the voltage across each is constant?
Two bulbs whose resistances are in the ratio of are connected in parallel to a source of constant voltage. What will be the ratio of power dissipation in these?
A potentiometer wire is long and a potential difference of is maintained between its ends. Find the emf (in ) of a cell which balances against a length of of the potentiometer wire.
A battery of emf and internal resistance is connected in series with a resistor of ohm through an ammeter of resistance ohm. The ammeter reads a current of . Draw the circuit diagram and calculate the value of .
Amount of charge passing through the cross-section of a wire is . Write the dimensional formula for , and . If the values of , and in SI unit are , , respectively, find the value of current at seconds.
A potentiometer circuit for comparison of two resistances is shown below. The balance point with a standard resistor is found to be , while that with the unknown resistance is . Determine the value of . What might you do if you failed to find a balance point with the given cell of emf .