In the circuit shown in Fig, R is a variable resistor whose value can range from 0
Question:
In the circuit shown in Fig, R is a variable resistor whose value can range from 0 to ∞, and a and b are the terminals of a battery having an emf E = 15.0 V and an internal resistance of 4.00 Ω. The ammeter and voltmeter arc both idealized meters. As R varies over its full range of values, what will be the largest and smallest readings of?
(a) The voltmeter and
(b) The ammeter?
(c) Sketch qualitative graphs of the readings of both meters as functions of R1 as R ranges from 0 to ∞.
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IDENTIFY As the resistance R varies the current in the circuit also varies which causes ...View the full answer
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