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Chapter 23: Q23.1-2PE (page 860)

What is the value of the magnetic flux through the coil in figure b due to the wire?

Short Answer

Expert verified

The value of the magnetic flux coil is zero.

Step by step solution

01

Definition of Magnetic flux

The entire magnetic field that travels across a particular area is measured by magnetic flux. It's a helpful tool for describing the effects of the magnetic force on things in a specific location.

02

Calculate the value of flux

The flux created by a contour with an area\(A\)in a constant magnetic field\(B\)that makes an angle\(\phi \)with the plane of the contour can be expressed as,

\({\rm{\Phi = BAcos(}}\phi {\rm{)}}\)……………………(1)

The angle in the given situation is the right angle, hence the flux will be zero from equation (1) because the cosine of a right angle \({\rm{90}}^\circ \)is zero.

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Most popular questions from this chapter

Suppose you find that the belt drive connecting a powerful motor to an air conditioning unit is broken and the motor is running freely. Should you be worried that the motor is consuming a great deal of energy for no useful purpose? Explain why or why not.

A short circuit to the grounded metal case of an appliance occurs as shown in Figure \({\rm{23}}{\rm{.60}}\). The person touching the case is wet and only has a \({\rm{3}}{\rm{.00 k\Omega }}\) resistance to earth/ground.

(a) What is the voltage on the case if \({\rm{5}}{\rm{.00 mA}}\) flows through the person?

(b) What is the current in the short circuit if the resistance of the earth/ground wire is \({\rm{0}}{\rm{.200 \Omega }}\)?

(c) Will this trigger the \({\rm{20}}{\rm{.0 A}}\) circuit breaker supplying the appliance?

To receive AM radio, you want an RLC circuit that can be made to resonate at any frequency between\(500\) and\(1650{\rm{ }}kHz\). This is accomplished with a fixed\(1.00{\rm{ }}\mu H\)inductor connected to a variable capacitor. What range of capacitance is needed?

The motor in a toy car is powered by four batteries in series, which produce a total emf of \(6.00V\). The motor draws \(3.00A\) and develops a \(4.50V\) back emf at normal speed. Each battery has a \(0.100\Omega \) internal resistance. What is the resistance of the motor?

What is the peak emf generated by a 0.250 mradius, 500-turn coil is rotated one-fourth of a revolution in 4.17 m/s, originally having its plane perpendicular to a uniform magnetic field. (This is 60 rev/s.)
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