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Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 20 - Heating Effects of Current and Instruments > Figure shows a circuit that may be used to compare the resistance R of an unknown resistor with a 100 ohm standard. The distances l from one end of the potentiometer slider wire to the balance point are 400 mm and 588 mm when X is connected to Y and Z, respectively. The length of the slide wire is 1.00 m. What is the value of resistance R?

Figure shows a circuit that may be used to compare the resistance R of an unknown resistor with a 100 ohm standard. The distances l from one end of the potentiometer slider wire to the balance point are 400 mm and 588 mm when X is connected to Y and Z, respectively. The length of the slide wire is 1.00 m. What is the value of resistance R?

also of resistance R are connected to 6 V battery of negligible internal resistance. A voltmeter In the circuit shown in fig is connected across Y. What is the reading of the voltmeter? resistors X and Y each with resistance R