A two 2V battery in series of internal resistance 1 each is connected in
series to an 8 resistor. The current
through the circuit is

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

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