Abattery with an emf of 12 v and an internal resistance of 1 ω is used to charge a battery with an emfof 10 v and an internal resistance of 1 ω. the current in the circuit is : a) 2 a b) 1 a c) 4a d) 11a e) 22 a

Option B

Explanation:

The net emf in the circuit

E = 12 - 10 = 2 V

Total effective resistance,

r = 1 + 1 = 2 ohm

By using Ohm's law

E = I × R

I = 2 / 2 = 1 A

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a longitudinal wave moves energy that is to the direction of the wave’s movement. - true