# Charge Problem

One end of an ammeter is connected to a switch while the other end of ammeter is connected to a spherical shell of radius $$1$$ m and the other end of switch is earthed.

A particle with charge $$q$$ is placed at a distance of $$10$$ m initially on the axis passing through the centre of the shell.

At $$t = 0$$ , switch is closed and the charged particle is projected with velocity $$v = 2t + 4$$ towards the centre of shell where $$t$$ is time in seconds. If the ammeter reads $$1 A$$ at $$t = 1$$ second then find the value of 6q

Details and Assumptions

$$\bullet$$ Both negative and positive values of q are possible as I have not given the direction of current. Give the positive value of 6q

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