1.

ln the given circuit, calculate : (i) the total resistance of the circuit (ii) the current through the circuit, and (iii) the potential difference across R_(1) and R_(2)

Answer»

Solution :Given, the resistance of conductor `R_(1) = 4Omega`
The resistance of conductor `R_(2) = 20Omega`
(i) The total resistance of the circuit R= `R_(1) + R_(2)`(series COMBINATION)
(i) Now by Ohm.s Law
The current through the circuit
`V=IRI= (V)/(R) = (6)/(24) = (1)/(4) =0.25 ` Amp.
(iii) The potential difference across the TWO TERMINALS of the battery = 6 V .
`V_(1)= IxxR_(1)`
= `0.25xx4= 1V` ( Potential difference across the conductor `R_(1))`
`V_(2) =IxxR_(2)`
= `0.25xx20= 5V` ( Potential difference across the conductor `R_(2))`


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