Circuit diagram shows that resistors 2- Omega- 4- Omega and R- Omega connected to a battery of e-m-f- 2 V and internal resistance 3- Omega- A main current of 0-25 A flows through the circuit- What is the p-d- across the 4- Omega resistor-2 V6 V1 V4 V

Question

Toppr Admin · Accepted Answer

The resistances R are 2 ohms that are connected in parallel is further connected in series with the 4 ohms resistor.
We know that in a series circuit, the current through each of the components is the same, and the voltage across the circuit is the sum of the voltages across each component.
Therefore, the amount of current flowing in the resistors are given as 0.25 A.
The potential difference across the 4 ohms resistor is given as $V = I R = 0.25 A \times 4 Ω = 1 V$ .
Hence, the p.d across the 4 ohms resistor is 1 volt.

Circuit diagram shows that resistors 2Ω, 4Ω and RΩ connected to a battery of e.m.f. 2 V and internal resistance 3Ω. A main current of 0.25 A flows through the circuit. What is the p.d. across the 4Ω resistor?2 V6 V1 V4 V

Circuit diagram shows that resistors $2 Ω$ , $4 Ω$ and $R Ω$ connected to a battery of e.m.f. 2 V and internal resistance $3 Ω$ . A main current of 0.25 A flows through the circuit. What is the p.d. across the $4 Ω$ resistor?

2 V
6 V
1 V
4 V