Chapter 20 – Heating Effects of Current and Instruments
Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 20 - Heating Effects of Current and Instruments
In the circuit shown in the figure, the galvanometer ‘G’ gives zero deflection. If the batteries A and B have negligible internal resistance, find the value of the resistor R.
06
Dec
In the circuit shown in the figure, the galvanometer ‘G’ gives zero deflection. If the batteries A and B have negligible internal resistance, find the value of the resistor R. find the value of the resistor R. In the circuit shown in the figure: the galvanometer 'G' gives zero deflection. If the batteries A and [...]
In a meter bridge experiment, the null point is obtained at 20 cm from one end of the wire when resistance X is balanced against another resistance Y. If X< Y, then where will the new position of the null point be from the same end, if one decides to balance a resistance of 4X against Y?
06
Dec
In a meter bridge experiment, the null point is obtained at 20 cm from one end of the wire when resistance X is balanced against another resistance Y. If X< Y, then where will the new position of the null point be from the same end, if one decides to balance a resistance of 4X [...]
In the shown arrangement of the experiment of the meter bridge if AC corresponding to null deflection of galvanometer is x, what would be its value if the radius of the wire AB is doubled ?
06
Dec
In the shown arrangement of the experiment of the meter bridge if AC corresponding to null deflection of galvanometer is x, what would be its value if the radius of the wire AB is doubled ? In the shown arrangement of the experiment of the meter bridge if AC corresponding to null deflection of galvanometer [...]
In the circuit shown in Fig, resistors X and Y each with resistance R, are connected to 6 V battery of negligible internal resistance. A voltmeter, also of resistance R, is connected across Y. What is the reading of the voltmeter?
06
Dec
In the circuit shown in Fig, resistors X and Y each with resistance R, are connected to 6 V battery of negligible internal resistance. A voltmeter, also of resistance R, is connected across Y. What is the reading of the voltmeter? also of resistance R are connected to 6 V battery of negligible internal resistance. [...]