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Transcript
A
S1
S2
ΔV = 120 V
R1 = 20 Ω
R2 = 10 Ω
R1
R1
R1
R2
Find the current at point A for all possible combinations of switch settings. (In each
case, redraw the circuit in the simplest possible way before finding the current.)
ΔV = 6 V
R2
A
R1 = 100 Ω
R2 = 50 Ω
B
ΔV = 5 V
ΔV = 4 V
R1
Find the current in each resistor and the potential difference between points A and B.
R1
R3
R2
R
R1 = 10 Ω
R2 = 4 Ω
R3 = 7 Ω
ΔV = 24 V
1.
2.
3.
Assume R = 5 Ω. What is the current running through each resistor in the
circuit?
Assume R is very large (say, 5000 Ω). What then is the current running
through the battery? What physical situation does this correspond to?
Assume R is very small (say, 0.001 Ω). What then is the current running
through the battery? What physical situation does this correspond to?