Question

23-IF THREE RESISTORS 2,4,8 OHM COMBINED IN SERIES BY A 20 VOLT BATTRY THEN FIND (1)AMOUNT OF

CURRENT (2)VOLTAGE ACROSS EACH RESISTOR​

Answer 1

Answer:

(1) 1.42 Amperes

(2)2.84 volts, 4.26 volts, 11.36 volts

Explanation:

Given :

• Three resistors of 2 ohm, 4 ohm and 8 ohms are connected in series

• A 20 volt battery is connected to it

To find :

• Amount of current

• Voltage across each resistor

Equivalent resistance = 2+4+8 = 14 ohms

Using the ohms law :

V=I×R

20=I×14

I=20/14

I=1.42 Amperes

Voltage across 2 ohms resistor :

V=1.42×2

V=2.84 volts

Voltage across 4 ohms resistor :

V=1.42×3

V=4.26 volts

Voltage across 8 ohms resistor :

V=1.42×8

V=11.36 volts