A closed box has two metal terminals a and b. The inside of the box contains an
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A closed box has two metal terminals a and b. The inside of the box contains an unknown emf E in series with a resistance R. When a potential difference of 21 V is maintained between a and b, there is a current of 1 A between the terminals a and b. If this potential difference is reversed, a current of 2 A in the reverse direction is observed. Find E and R.
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The conditions for the data given E 21 V ...View the full answer
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Related Book For 
Fundamentals of Ethics for Scientists and Engineers
ISBN: 978-0195134889
1st Edition
Authors: Edmund G. Seebauer, Robert L. Barry
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