Volume 2
A capacitor is charged to certain potential difference and then discharged through a resistor R. It takes 2μs for current through R to become half its initial value. It would take 4μs for current to become half its initial value if?
03
Dec
A capacitor is charged to certain potential difference and then discharged through a resistor R. It takes 2μs for current through R to become half its initial value. It would take 4μs for current to become half its initial value if? The emf of the battery shown in the figure : December 3, 2020 Category: [...]
The capacitive time constant of the RC circuit shown in the figure is:
03
Dec
The capacitive time constant of the RC circuit shown in the figure is: The capacitive time constant of the RC circuit shown in the figure is: December 3, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity , Volume 2 ,
A battery of emf E0 = 12V is connected across a 4m long uniform wire having resistance m/4Ω . The cells of small emf ε1 = 2V and ε 2 = 4V having internal resistance 2Ω and 6Ω respectively, are connected as shown in the figure. If galvanometer shows no deflection at the point N, find the distance of point N from the point A is equal to :
03
Dec
A battery of emf E0 = 12V is connected across a 4m long uniform wire having resistance m/4Ω . The cells of small emf ε1 = 2V and ε 2 = 4V having internal resistance 2Ω and 6Ω respectively, are connected as shown in the figure. If galvanometer shows no deflection at the point N, [...]
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A battery of emf E0 = 12V is connected across a 4m long uniform wire having resistance m/4Ω . The cells of small emf ε1 = 2V and ε 2 = 4V having internal resistance 2Ω and 6Ω respectively ,
are connected as shown in the figure. If galvanometer shows no deflection at the point N ,
find the distance of point N from the point A is equal to : ,
The potentiometer wire AB is 100 cm long. For what value of R, the galvanometer shows no deflection, when AC=40cm (shown in figure)?
03
Dec
The potentiometer wire AB is 100 cm long. For what value of R, the galvanometer shows no deflection, when AC=40cm (shown in figure)? the galvanometer shows no deflection The potentiometer wire AB is 100 cm long. For what value of R when AC=40cm (shown in figure)? December 3, 2020 Category: Arihant Physics by D.C Pandey [...]
A potentiometer wire of length 100 cm has a resistance of 10 ohm. it is connected in series with a resistance and an accumulator of e.m.f 2 V and of negligible resistance . A source of e.m.f. 10 m V is balanced against a length of 40 cm of the potentiometer wire. What is the value of R1 ?
03
Dec
A potentiometer wire of length 100 cm has a resistance of 10 ohm. it is connected in series with a resistance and an accumulator of e.m.f 2 V and of negligible resistance . A source of e.m.f. 10 m V is balanced against a length of 40 cm of the potentiometer wire. What is the [...]
In the given circuit, the voltmeter and the electric cell are ideal. Find the reading of the voltmeter
03
Dec
In the given circuit, the voltmeter and the electric cell are ideal. Find the reading of the voltmeter In the given circuit the voltmeter and the electric cell are ideal . Find the reading of the voltmeter December 3, 2020 Category: Arihant Physics by D.C Pandey , Chapter 3 - Current Electricity , Volume 2 [...]
In the given circuit ammeter and voltmeters are out and circuit is completed the current through the cell is I0 and VA – VB = V0. Consider the symbols : x means _(A)_ is brought in the circuit, y means _(V)_ is brought in the circuit then:
03
Dec
In the given circuit ammeter and voltmeters are out and circuit is completed the current through the cell is I0 and VA – VB = V0. Consider the symbols : x means _(A)_ is brought in the circuit, y means _(V)_ is brought in the circuit then: In the given circuit ammeter and voltmeters are [...]
When battery and galvanometer are interchanged in the case of Wheatstone bridge, then?
03
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 [...]