Consider the circuit below. [Answer in 2 significant figures] a a) b b) value. c) L 0.25 A d) > 10 Q2 M 0.1 A R = ? 20 Ω www 10 Ω ww I= ? What is the potential difference between a and b? What is the equivalent resistance of the circuit? 5Ω What is the current l? How much power is dissipated by the unknown resistor R? You should have a numerical

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Chapter1: Units, Trigonometry. And Vectors
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**Consider the circuit below. [Answer in 2 significant figures]**

The diagram depicts an electrical circuit consisting of various resistors and currents:

- A current of 0.25 A flows from point a through a 10 Ω resistor.
- This splits into two branches:
  - One branch contains a 0.1 A current passing through an unknown resistor R.
  - The other branch has a 10 Ω resistor followed by a 5 Ω resistor in series, with current I flowing through them.
- Both branches rejoin and continue through a 20 Ω resistor to point b.

**Questions:**

a) What is the current I?

b) How much power is dissipated by the unknown resistor R? You should have a numerical value.

c) What is the potential difference between a and b?

d) What is the equivalent resistance of the circuit?
Transcribed Image Text:**Consider the circuit below. [Answer in 2 significant figures]** The diagram depicts an electrical circuit consisting of various resistors and currents: - A current of 0.25 A flows from point a through a 10 Ω resistor. - This splits into two branches: - One branch contains a 0.1 A current passing through an unknown resistor R. - The other branch has a 10 Ω resistor followed by a 5 Ω resistor in series, with current I flowing through them. - Both branches rejoin and continue through a 20 Ω resistor to point b. **Questions:** a) What is the current I? b) How much power is dissipated by the unknown resistor R? You should have a numerical value. c) What is the potential difference between a and b? d) What is the equivalent resistance of the circuit?
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