Question

Help me with this..​

Answer 1

Answer:

0.5A

Explanation:

V=IR

as per the OHM law,

so V is given to us as 10 V and resistor is given as 2 Ohms

by putting the value we'll get the answer as 0.5A

Answer 2

Let x be the voltage at the junction of 10v 20v and 1 ohm respectively.

Apply KCL at the junction.

(x-10)/2 + (x-0)/1 + (x-20)/4 = 0

(2x – 20 + 4x + x – 20 ) = 0

7x = 40

x = 40/7

 

I = (40/7 – 10)/2 => -30/14 = -15/7A

 

minus sign indicates that the current is flowing in the opposite direction of that assumed.

Hope this helps you