a bulb is connected in series to 20 volt battery the circuit resistance is 5 ohm and the current of 2 ampere flows through the circuit calculate the resistance of bulb now a resistance of 10 ohm added in parallel to the existing circuit then what is the change in current flowing through the original 5 ohm circuit
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resistance of the bulb=
= 20/2
= 10 Ω
NEW CURRENT FLOWING THROUGH THE CIRCUIT AFTER ADDING THE 10Ω RESISTOR
TOTAL RESISTANCE OF THE CIRCUIT
= + .
= .
=
R= 5 Ω
NEW CURRENT=
= . 20/ 5
= 4Α
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