Chapter 23: Q1PE (page 860)
What is the value of the magnetic flux at coil 2 in figure due to coil 1?
Short Answer
The value of the magnetic flux at coil 2 is zero.
Chapter 23: Q1PE (page 860)
What is the value of the magnetic flux at coil 2 in figure due to coil 1?
The value of the magnetic flux at coil 2 is zero.
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Get started for freeVerify, as was concluded without proof in Example\(23.7\), that units of
\(\begin{align}{}T \times {m^2}{\rm{ }}/{\rm{ }}A{\rm{ }} & {\rm{ }}\Omega \times s{\rm{ }}\\ & = {\rm{ }}H\end{align}\).
A person who works with large magnets sometimes places her head inside a strong field. She reports feeling dizzy as she quickly turns her head. How might this be associated with induction?
When a magnet is thrust into a coil as in Figure 23.4(a), what is the direction of the force exerted by the coil on the magnet? Draw a diagram showing the direction of the current induced in the coil and the magnetic field it produces, to justify your response. How does the magnitude of the force depend on the resistance of the galvanometer?
Two coils are placed close together in a physics lab to demonstrate Faraday’s law of induction. A current of in one is switched off in , inducing an emf in the other. What is their mutual inductance?
(a) What current flows when a\(60.0{\rm{ }}Hz,{\rm{ }}480{\rm{ }}V\)AC source is connected to a 0\(0.250{\rm{ }}\mu F\)capacitor? (b) What would the current be at\(25.0{\rm{ }}kHz\)?
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