Cengage JEE Mains Physics by B.M Sharma
In the circuit shown in figure, an ideal ammeter and an ideal voltmeter are used. When the key is open, the voltmeter reads 1.53 V. When the key is closed, the ammeter reads 1.0 A and the voltmeter reads 1.03 V. The resistance R is
06
Dec
In the circuit shown in figure, an ideal ammeter and an ideal voltmeter are used. When the key is open, the voltmeter reads 1.53 V. When the key is closed, the ammeter reads 1.0 A and the voltmeter reads 1.03 V. The resistance R is an ideal ammeter and an ideal voltmeter are used. When [...]
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?
06
Dec
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 [...]
A milliammeter of range 10 mA has a coil of resistance 1 Ω. To use it as an ammeter of range 1A, the required shunt must have a resistance of
06
Dec
A milliammeter of range 10 mA has a coil of resistance 1 Ω. To use it as an ammeter of range 1A, the required shunt must have a resistance of A milliammeter of range 10 mA has a coil of resistance 1 Ω. To use it as an ammeter of range 1A the required shunt [...]
The resistance of a galvanometer is 10Ω. It gives full-scale deflection when 1 mA current is passed. The resistance connected in series for converting it into a voltmeter of 2.5 V will be
06
Dec
The resistance of a galvanometer is 10Ω. It gives full-scale deflection when 1 mA current is passed. The resistance connected in series for converting it into a voltmeter of 2.5 V will be The resistance of a galvanometer is 10Ω. It gives full-scale deflection when 1 mA current is passed. The resistance connected in series [...]
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. [...]
The given infinite grid consists of hexagonal cells of six resistor each of resistance R. Then R12 =
06
Dec
The given infinite grid consists of hexagonal cells of six resistor each of resistance R. Then R12 = The given infinite grid consists of hexagonal cells of six resistor each of resistance R. Then R12 = December 6, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 19 - Electric Resistance and Simple [...]
Find the potential difference across C2.
06
Dec
Find the potential difference across C2. Find the potential difference across C2. December 6, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 19 - Electric Resistance and Simple Circuits ,