Help me out guys
I'm stuck in this ​

The answer will be R1 = B

Explanation:

Cause Here x component of A = A

X component of 2B       = 2BcosФ

X component of Resultant = 0

I.e. A + 2BcosФ = 0

cosФ = -A/2B

also R1 = √(A² + B² + 2ABcosФ)

            =√ [A² + B² + 2AB(-A/2B)]

            =√A² + B² -A²

R1 = √B²

R1 = B so R1 = B is correct.

answer: option c. i.e. electric current flowing “downhill” from the negative electrode to the positive electrode in a battery

explanation:

the water analogy to the circuits define the pipes (water flows) to the electric current. now, we know that the electric current flows from the positive terminal to the circuit (as shown in the diagram attached).

hence, option c is the correct answer.

a 2,000 calorie based diet.