how does the balance point change
The circuit shows in Fig .shows the use of potentiometer to measure the internal resistance of a cell. (a) When the key is open, how does the balance point change, if the driver cell decreases ? (b) When the key is closed, how does the balance point change, if R is increased, keeping the current from the driver cell constant ?
03
Sep
The circuit shows in Fig .shows the use of potentiometer to measure the internal resistance of a cell. (a) When the key is open, how does the balance point change, if the driver cell decreases ? (b) When the key is closed, how does the balance point change, if R is increased, keeping the current [...]
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how does the balance point change ,
if R is increased ,
if the driver cell decreases ? (b) When the key is closed ,
keeping the current from the driver cell constant ? ,
The circuit shows in Fig .shows the use of potentiometer to measure the internal resistance of a cell. (a) When the key is open ,