Chapter 3 – Current Electricity
Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 3 - Current Electricity
When battery and galvanometer are interchanged in the case of Wheatstone bridge, then?
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Dec
When battery and galvanometer are interchanged in the case of Wheatstone bridge, then? then When battery and galvanometer are interchanged in the case of Wheatstone bridge December 3, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity , Volume 2 ,
A voltmeter having a resistance of 1800 Ω is employed to measure the potential difference across 200Ω resistance, which is connected to dc power supply of 50 V and internal resistance 20Ω. What is the approximate percentage change in the potential difference across 200Ω resistance as a result of connecting the voltmeter across it?
03
Dec
A voltmeter having a resistance of 1800 Ω is employed to measure the potential difference across 200Ω resistance, which is connected to dc power supply of 50 V and internal resistance 20Ω. What is the approximate percentage change in the potential difference across 200Ω resistance as a result of connecting the voltmeter across it? A [...]
A DC milliammeter has a resistance of 12Ω and gives a full scale deflection for a current of 0.01 A. To convert it into a voltmeter giving a full scale deflection of 3V, the resistance required to be put in series with the instrument is :
03
Dec
A DC milliammeter has a resistance of 12Ω and gives a full scale deflection for a current of 0.01 A. To convert it into a voltmeter giving a full scale deflection of 3V, the resistance required to be put in series with the instrument is : A DC milliammeter has a resistance of 12Ω and [...]
An uncharged sphere of metal is placed in between two charged plates as shown. The lines of force look like
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Dec
An uncharged sphere of metal is placed in between two charged plates as shown. The lines of force look like An uncharged sphere of metal is placed in between two charged plates as shown. The lines of force look like. December 2, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity [...]
The emf of the battery shown in the figure :
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Dec
The emf of the battery shown in the figure : The emf of the battery shown in the figure : December 2, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity , Volume 2 ,
In the circuit shown in the figure, the potential drop V, across the resistor of 10Ω is?
02
Dec
In the circuit shown in the figure, the potential drop V, across the resistor of 10Ω is? across the resistor of 10Ω is? In the circuit shown in the figure: the potential drop V December 2, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity , Volume 2 ,
Figure shows four batteries of emf E and internal resistance ‘r’ are connected in series. The voltage across each battery is?
02
Dec
Figure shows four batteries of emf E and internal resistance ‘r’ are connected in series. The voltage across each battery is? Figure shows four batteries of emf E and internal resistance 'r' are connected in series. The voltage across each battery is? December 2, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - [...]
The potential difference between the point ‘A’ and ‘B’ is :
02
Dec
The potential difference between the point ‘A’ and ‘B’ is : The potential difference between the point 'A' and 'B' is : December 2, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity , Volume 2 ,
Figure shows a circuit with two cells ‘x’ and ‘y’ in opposite to each other. Cell x has an emf of 6 volts and internal resistance of 2Ω and cell y has an emf of 4V and internal resistance of 8Ω. What is the voltage between terminals A and B?
02
Dec
Figure shows a circuit with two cells ‘x’ and ‘y’ in opposite to each other. Cell x has an emf of 6 volts and internal resistance of 2Ω and cell y has an emf of 4V and internal resistance of 8Ω. What is the voltage between terminals A and B? The current through the 5 [...]
When a voltmeter is connected across a 400 ohm resistance, it reads 30 V, when it is connected across 300 ohm resistance, it will read
02
Dec
When a voltmeter is connected across a 400 ohm resistance, it reads 30 V, when it is connected across 300 ohm resistance, it will read it reads 30 V it will read When a voltmeter is connected across a 400 ohm resistance when it is connected across 300 ohm resistance December 2, 2020 Category: Arihant [...]