Question

d:(i) total resistance of the circuit. 6
(ii) total current flowing in the circui
(iii) the potential difference across R​

Answer 1

Explanation:

araay ask the question in proper words u have only written statements

Answer 2

The total potential difference across R is 8 Volts.

Explanation:

• When tow circuits are connected in parallel then their resistance can be calculated as
• 1 / R' = 1/3 + 1/6
• 1/R' = 3 / 6
• After calculating we get
• R'= 2 ohm
• Now total resistance of the circuit = 2 ohm + 4 ohm = 6 ohm
• Now to calculate the total current flowing through the circuit =  Voltage / Total resistance  
• Total current (I) = 12 / 6 = 2 A
• Now the potential difference  
• V = R1 x I = 4 x 2 =  8 volts