The circuit below shows 2 batteries and 3 equal resistors E1

The circuit below shows 2 batteries and 3 equal resistors. E1= 37.2 volts, and E2=21.4 volts. Each resistor is 24.1 ohms. Find the magnitude of the current I through the first battery (E1), in Amps.

QUESTION 7 5 points Sa The circuit below shows 2 batteries and 3 equal resistors. El= 37.2 volts, and E2-21.4 volts. Each resistor is 24.1 ohms The circuit below shows 2 batteries and 3 equal resistors. E1 37.2 volts, and E2-21.4 volts. Each resistor is 24.1 ohms. Find the magnitude of the current I through the first battery (E1), in Amps R1 2 R2 R3

Solution

Here,

Here,

for the current flowing through the R2

current through R2 = E2/R2

current through R2 = 19.3/20.4 A

current through R2 = 0.946 A

E1 - (24.1 + 24.1) * I1 - R2 * I2 = 0

37.2 - (24.1 + 24.1) * I1 - 0.946 * 24.1 = 0

solving for I1

I1 = 0.30 A

the current I1 is 0.30 A

the magnitude of current I through the first battery is 0.30 A