Question

in the circuit
given above find

a) Equivalent resitance of circuit
b) current flowing through 2 ohm resistor
(c) voltage drop across 3 ohm resistor​

Answer 1

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You take the basic formula of E = I x R, solve for R -> R = E / I. In other words, take the required voltage drop (in volts) and divide by the current (in amps) in the resistor and determine the resistance (R) in ohms.