Is anybody able to help me with the following: Calculate the magnitude of the current I when a voltage of 100 V is applied across a resistance R of 10^12 (Ohms law). I don't even know where I'm meant to start, or how I'm meant to work this out.
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Originally Posted by AJShaw Is anybody able to help me with the following: Calculate the magnitude of the current I when a voltage of 100 V is applied across a resistance R of 10^12 (Ohms law). I don't even know where I'm meant to start, or how I'm meant to work this out. Substitute into V = IR. Solve for I (use a basic index law).
v = IR I = 100v/10^12 I = 1 x 10^-10 Is this right? If it is wrong, can you show me step by step how to work it out, please?
Originally Posted by AJShaw v = IR I = 100v/10^12 I = 1 x 10^-10 Is this right? [snip] Yes. (Except that the answer should have a unit. When working in V and Ohms the unit of current is Amp).
Thank-you so much
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