Chapter 4 – Moving Charges and Magnetism
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A long straight wire carrying current of 25A rests on a table as shown in Fig. 4.3. Another wire PQ of length 1m, mass 2.5 g carries the same current but in the opposite direction. The wire PQ is free to slide up and down. To what height will PQ rise?
26
Nov
A long straight wire carrying current of 25A rests on a table as shown in Fig. 4.3. Another wire PQ of length 1m, mass 2.5 g carries the same current but in the opposite direction. The wire PQ is free to slide up and down. To what height will PQ rise? A long straight wire [...]
A multirange voltmeter can be constructed by using a galvanometer circuit as shown in Fig. 4.2. We want to construct a voltmeter that can measure 2V, 20V and 200V using a galvanometer of resistance 10Ω and that produces maximum deflection for current of 1 mA. Find R1, R2 and R3 that have to be used.
26
Nov
A multirange voltmeter can be constructed by using a galvanometer circuit as shown in Fig. 4.2. We want to construct a voltmeter that can measure 2V, 20V and 200V using a galvanometer of resistance 10Ω and that produces maximum deflection for current of 1 mA. Find R1, R2 and R3 that have to be used. [...]
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20V and 200V using a galvanometer of resistance 10Ω and that produces maximum deflection for current of 1 mA. Find R1 ,
A multirange voltmeter can be constructed by using a galvanometer circuit as shown in Fig. 4.2. We want to construct a voltmeter that can measure 2V ,
R2 and R3 that have to be used. ,
A current carrying loop consists of 3 identical quarter circles of radius R, lying in the positive quadrants of the x-y, y-z and z-x planes with their centres at the origin, joined together. Find the direction and magnitude of B at the origin.
26
Nov
A current carrying loop consists of 3 identical quarter circles of radius R, lying in the positive quadrants of the x-y, y-z and z-x planes with their centres at the origin, joined together. Find the direction and magnitude of B at the origin. A current carrying loop consists of 3 identical quarter circles of radius [...]
Verify that the cyclotron frequency ω = eB/m has the correct dimensions of [T]–1.
26
Nov
Verify that the cyclotron frequency ω = eB/m has the correct dimensions of [T]–1. Verify that the cyclotron frequency ω = eB/m has the correct dimensions of [T]–1. November 26, 2021 Category: Chapter 4 - Moving Charges and Magnetism , NCERT Exemplar Class 12 , Physics ,
A charged particle would continue to move with a constant velocity in a region wherein,
26
Nov
A charged particle would continue to move with a constant velocity in a region wherein, A charged particle would continue to move with a constant velocity in a region wherein November 26, 2021 Category: Chapter 4 - Moving Charges and Magnetism , NCERT Exemplar Class 12 , Physics ,
In a cyclotron, a charged particle
26
Nov
In a cyclotron, a charged particle a charged particle In a cyclotron November 26, 2021 Category: Chapter 4 - Moving Charges and Magnetism , NCERT Exemplar Class 12 , Physics ,
An electron is projected with uniform velocity along the axis of a current carrying long solenoid. Which of the following is true?
26
Nov
An electron is projected with uniform velocity along the axis of a current carrying long solenoid. Which of the following is true? An electron is projected with uniform velocity along the axis of a current carrying long solenoid. Which of the following is true? November 26, 2021 Category: Chapter 4 - Moving Charges and Magnetism [...]
Two long wires carrying current I1 and I2 are arranged as shown in Fig. 4.1. The one carrying current I1 is along is the x-axis. The other carrying current I2 is along a line parallel to the y-axis given by x = 0 and z = d. Find the force exerted at O2 because of the wire along the x-axis.
26
Nov
Two long wires carrying current I1 and I2 are arranged as shown in Fig. 4.1. The one carrying current I1 is along is the x-axis. The other carrying current I2 is along a line parallel to the y-axis given by x = 0 and z = d. Find the force exerted at O2 because of [...]
Biot-Savart law indicates that the moving electrons (velocity v ) produce a magnetic field B such that
26
Nov
Biot-Savart law indicates that the moving electrons (velocity v ) produce a magnetic field B such that Biot-Savart law indicates that the moving electrons (velocity v ) produce a magnetic field B such that November 26, 2021 Category: Chapter 4 - Moving Charges and Magnetism , NCERT Exemplar Class 12 , Physics ,
A galvanometer coil has a resistance of 15 Ω and the metre shows full scale deflection for a current of 4 mA. How will you convert the metre into an ammeter of range 0 to 6 A?
26
Nov
A galvanometer coil has a resistance of 15 Ω and the metre shows full scale deflection for a current of 4 mA. How will you convert the metre into an ammeter of range 0 to 6 A? A galvanometer coil has a resistance of 15 Ω and the metre shows full scale deflection for a [...]