Two small insulating spheres are attached to silk threads. The spheres have equa

Question

Two small insulating spheres are attached to silk threads. The spheres have equal masses of 40 g, and have electric charges of q1 = +2.0 ?C and q2 = -2.0 ?C. The spheres are brought into the initial positions shown in Fig. (a), with a vertical separation of 15 cm between them.


In Fig. 21.5, the tension in the lower thread in Fig. (a) is closest to:

Two small insulating spheres are attached to silk threads. The spheres have equal masses of 40 g, and have electric charges of q1 = +2.0 C and q2 = -2.0 C. The spheres are brought into the initial positions shown in Fig. (a), with a vertical separation of 15 cm between them.


In Fig. 21.5, the tension in the lower thread in Fig. (a) is closest to:

Explanation / Answer

Correct answer is 1.2N

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