A p.d. of 4 V is applied to two resistors of $6 Ω$ and $2 Ω$ connected in series. Calculate:
(a) the combined resistance
(b) the current flowing
(c) the p.d. across the $6 Ω$ resistor.

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Solution

a) $R_{e q} = 6 + 2 = 8 Ω$

b) current, $I = \frac{V}{R} = \frac{4}{8} = \frac{1}{2} = 0.5$

c) the p.d. across the 6Ω resistor

$V_{6} = I \times (R_{6}) = 0.5 \times 6 = 3 v o l t$

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Q. A p.d. of 6 V is applied to two resistors of 3 Ω and 6 Ω connected in parallel. Calculate:

(a) the combined resistance
(b) the current flowing in the main circuit
(c) the current flowing in the 3 Ω resistor.

A resistor of $6 Ω$ is connected in series with another resistor of $4 Ω$ . A potential difference of 20 V is applied across the combination. Calculate:

(a) the current in the circuit, and

(b) the potential difference across the $6 Ω$ resistor.

Q. Two Resistor

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and

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and internal Resistance

0.7 Ω

. Calculate the current through

6 Ω

Resistors.

In the circuit given below:

(a) What is the combined resistance?
(b) What is the p.d. across the combined resistance?
(c) What is the p.d. across the 3 Ω resistor?
(d) What is the current in the 3 Ω resistor?
(e) What is the current in the 6 Ω resistor?

Q. A resistors of

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is connected in series with another resistor of

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. A potential difference of 20 V is applied across the combination.

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A p.d. of 4 V is applied to two resistors of 6Ω and 2Ω connected in series. Calculate: (a) the combined resistance (b) the current flowing (c) the p.d. across the 6Ω resistor.

a) Req=6+2=8Ω b) current, I=VR=48=12=0.5 c) ​​​​​the p.d. across the 6Ω resistor V6=I×(R6)=0.5×6=3 volt

A p.d. of 4 V is applied to two resistors of $6 Ω$ and $2 Ω$ connected in series. Calculate:
(a) the combined resistance
(b) the current flowing
(c) the p.d. across the $6 Ω$ resistor.

a) $R_{e q} = 6 + 2 = 8 Ω$

b) current, $I = \frac{V}{R} = \frac{4}{8} = \frac{1}{2} = 0.5$

c) the p.d. across the 6Ω resistor

$V_{6} = I \times (R_{6}) = 0.5 \times 6 = 3 v o l t$