(a) What is the terminal voltage of a large 1.54 v carbon-zinc dry cell used in a physics lab to supply 2.00 a to a circuit, if the cell's internal resistance is ? (b) How much electrical power does the cell produce? (c) What power goes to its load?
Carbon zinc dry cell is use as the power source for various proposes. The terminal voltage of carbon zinc dry cell is given by equation,
Here, emf is the output voltage of the battery, I is the current and R is the resistance.
Given EMF of the carbon zinc dry cell is
Therefore, terminal voltage is,
Electric power produced,
Therefore, electric power produce is,
Electric power output,
Therefore, electric power output is, .
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