(a)
To Calculate:The potential difference induced in the given conductor.
(a)
Answer to Problem 45A
Explanation of Solution
Given:
Length of the wire,
Magnetic Field,
Speed of the wire,
Resistance,
Formula used:
The EMF is:
Where,
Calculation:
Substitute all the values in the given formula,
Conclusion:
Hence, the potential difference induced in the given conductor is
(b)
To Calculate:The current in the circuit if the total resistance of circuit is
(b)
Answer to Problem 45A
Explanation of Solution
Given:
The potential difference induced in the given conductor is
Resistance of circuit is
Formula used:
Where,
Calculation:
The formula to calculate the current is given by,
Substituting all the values in the given formula,
Conclusion:
Hence, the current in the circuit is
(c)
To Explain:The polarity of point A relative to point B.
(c)
Answer to Problem 45A
Point A is negative with relative to point B.
Explanation of Solution
Introduction:
The current flows from positive terminal to negative terminal. The polarity can be determined by finding the direction of the current in the conductor.
As per Fleming’s left hand rule, the thumb points towards right, middle finger points towards magnetic field which upwards, the index finger points from top to bottom. So, point A is positive relative to point B.
Conclusion:
Hence,point A is negative in relation to the point B.
Chapter 25 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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