What is the equivalent load resistance of the radio device

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a potential divider has formed from 1000 ohms variable resistance. the intention is to drop 12 volts from an automobile battery to 9 volts. When the radio device was attached the voltage drops 6.1 volts.
a) what is the equivalent load resistance of the radio device?
b) what is the load (miliamps) required by the radio device at 6.1 volts input?

Reference no: EM13267539

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