Two equal metal balls are charged to 10 and -20 units of electricity. Then they are brought in contact with

each other and then again separated to the original distance. The ratio of magnitudes of the forces between

the two balls is:

(a) + 8 : 1 (b) 1 : 8 (c) +2 : 1 (d) 1 : 2

Question

Two equal metal balls are charged to 10 and -20 units of electricity. Then they are brought in contact with

each other and then again separated to the original distance. The ratio of magnitudes of the forces between

the two balls is:

(a) + 8 : 1 (b) 1 : 8 (c) +2 : 1 (d) 1 : 2

Anirban Mukherjee · Answer

Initial Force =10X20/x^2 Final force=5X5/x^2 Charge=[10-20]/2=-5 F1/F2=200/25=8

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Two equal metal balls are charged to 10 and -20 units of electricity. Then they are brought in contact with each other and then again separated to the original distance. The ratio of magnitudes of the forces between the two balls is: (a) + 8 : 1 (b) 1 : 8 (c) +2 : 1 (d) 1 : 2

Two equal metal balls are charged to 10 and -20 units of electricity. Then they are brought in contact with

each other and then again separated to the original distance. The ratio of magnitudes of the forces between

the two balls is:

(a) + 8 : 1 (b) 1 : 8 (c) +2 : 1 (d) 1 : 2

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Two equal metal balls are charged to 10 and -20 units of electricity. Then they are brought in contact with each other and then again separated to the original distance. The ratio of magnitudes of the forces between the two balls is: (a) + 8 : 1 (b) 1 : 8 (c) +2 : 1 (d) 1 : 2

Two equal metal balls are charged to 10 and -20 units of electricity. Then they are brought in contact with each other and then again separated to the original distance. The ratio of magnitudes of the forces between the two balls is: (a) + 8 : 1 (b) 1 : 8 (c) +2 : 1 (d) 1 : 2

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Two equal metal balls are charged to 10 and -20 units of electricity. Then they are brought in contact with

each other and then again separated to the original distance. The ratio of magnitudes of the forces between

the two balls is:

(a) + 8 : 1 (b) 1 : 8 (c) +2 : 1 (d) 1 : 2