51. suppose you measure the terminal voltage of a 3.200-v lithium cell having an internal resistance of 5.00ω by placing a 1.00-kω voltmeter across its terminals. (a) what current flows? (b) find the terminal voltage. (c) to see how close the measured terminal voltage is to the emf, calculate their ratio.

Explanation:

Given that,

Terminal voltage = 3.200 V

Internal resistance

(a). We need to calculate the current

Using rule of loop

Where, E = emf

R = resistance

r = internal resistance

Put the value into the formula

(b). We need to calculate the terminal voltage

Using formula of terminal voltage

Where, V = terminal voltage

I = current

r = internal resistance

Put the value into the formula

(c). We need to calculate the ratio of the terminal voltage of voltmeter equal to emf

Hence, This is the required solution.