Question

a) Calculate the total resistance in the given circuit if R1 is 20 ohm, R2 is 10 ohm and R3 is 30 ohm.

b) Calculate the value of current if V is 30 V. (use ohms law, V = I / R)
(2 Points)
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Answer 1

Answer:

Given

• 3 Resistors in series
• R1 = 20 ohms
• R2 = 10 ohms
• R3 = 30 ohms
• Potential difference : V = 30 V

Total Resistance in series : R1 + R2 + R3

• 20 + 10 + 30
• 60 ohms

We have : V = I R

• 30 = I x 60
• 30/ 60 = I
• 1/2 = I
• 0.5 A = I

Resistance : 60 ohms And Current : 0.5 A

Option C is the corrret answer

Answer 2

Answer:

60 ohms and 0.5 A

Option C is the corrret answer .

Hope it helps you .