A point charge q with mass m moving with a velocity of i = vî enters a uniform magnetic field expressed as B = B,î + Byj + B,k. a) Find the magnetic force acting on the point charge. b) Find the radius and pitch of the spiral trajectory of the point charge.

University Physics Volume 2
18th Edition
ISBN:9781938168161
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Chapter10: Direct-current Circuits
Section: Chapter Questions
Problem 94CP: Consider the circuit below, (a) What is the initial current through resistor R2? when the switch is...
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Could you please solve question 3

Problems:
1. In the circuit shown in the figure, R, = R2 = 2kn,
C = 500µF, C2 = 1000µF, C3 = 1000µF, and
e = 50V. Capacitors have no charge at t-0 when
switch S is set to position A.
R1
R2
a) Find the current through the power supply
at t-0.
b) Find the time constant of the circuit.
c) When the capacitors are fully charged, find the potential difference between the
plates of C2.
R = 100 R2 = 40N
2. For the circuit with the known values
of its elements indicated in the figure
and I3=0.2 A,
a) find R3 and
b) calculate I and I2.
& = 6V
R3
Ez = 12V
13
3. A point charge q with mass m moving with a velocity of i = vî enters a uniform
magnetic field expressed as B = B,î + B,j + B,k.
a) Find the magnetic force acting on the point charge.
b) Find the radius and pitch of the spiral trajectory of the point charge.
Transcribed Image Text:Problems: 1. In the circuit shown in the figure, R, = R2 = 2kn, C = 500µF, C2 = 1000µF, C3 = 1000µF, and e = 50V. Capacitors have no charge at t-0 when switch S is set to position A. R1 R2 a) Find the current through the power supply at t-0. b) Find the time constant of the circuit. c) When the capacitors are fully charged, find the potential difference between the plates of C2. R = 100 R2 = 40N 2. For the circuit with the known values of its elements indicated in the figure and I3=0.2 A, a) find R3 and b) calculate I and I2. & = 6V R3 Ez = 12V 13 3. A point charge q with mass m moving with a velocity of i = vî enters a uniform magnetic field expressed as B = B,î + B,j + B,k. a) Find the magnetic force acting on the point charge. b) Find the radius and pitch of the spiral trajectory of the point charge.
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