Question: Part a,b,c (6) [5 points] If you test a 12V battery with a voltmeter, the reading will likely be very near 12V even if the

Part a,b,c

(6) [5 points] If you test a 12V battery with a voltmeter, the reading will likely be very near 12V even if the battery is \"bad\". This is because the voltmeter has a high internal resistance and little current is drawn through the circuit. Call this reading V0. The proper way to check the battery is to test it \"under load". i.e. by requiring that signicant current comes out of the battery terminals. This is done with a load resistor. r_internal 7'? + EMF Voltmeter ,___.__-__-________- (a) For a battery in good working order, the terminal voltage is near the stated EMF of 12V. Find the current through a 120 9. load resistor, and (b) calculate the power dissipated in the load. This is required for you to select a load resistor with sufficient power rating. (c) Show that under load, the battery internal resistance is given by: VD _ Vlaad Rload Vload Tint = (c) A particular 12V battery is considered bad if Vlmd is less than 10V under these testing conditions. Calculate the internal resistance

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