Question

a letter a is constricted of a uniform wire with resistance 1.0 per cm the sides of letters are 20cm and the cross piece in middle is 10cm the apex angle is 60 the resistance between ends of legs is close to

Answer 1

Explanation:

Since the angle of the apex is 60, that means the other two angles are also 60 and this is an equilateral triangle. That means the length from the apex to the cross side is the same as the cross side = 10cm which is 1ohm/cm * 10cm = 10 ohm.