Equivalent resistance
R=4+12×1212+12=10Ω
Current I=VR
I=510=0.5A
Thus equivalent resistance is 10Ω and current is 0.5A.
In the figure, calculate:
(a) the total resistance of the circuit,
(b) the value of R, and
(c) the current flowing in R.
In the circuit diagram given below. Find (i) Total resistance of the circuit (ii) Total current flowing in the circuit (iii) Potential difference across R1 4. Define one ohm. 5. Define one ampere of current. [5 MARKS]