Resistance in series
A battery of 4.6 volt having negligible internal resistance is joined to a number of wires of resistances 4,6,9 ohms, all connected in series.
The Equivalent resistance =4+6+9=19Ω
We know that V=IR or I=V/R
There fore current through the circuit =4.6/19=0.242 amp
Resistance in parallel
Four resistance of values 4,8,10 and 40 ohms respectively are joined in parallel and current of 40 amperes is led into them.
I/R=1/4+1/8+1/10+1/40
=10+5+4+1/40=20/40=1/2
Therefore the equivalent resistance R=2 ohms
We know that V=I*R=40*2=80 volts.
Therefore, current pass through 4Ω resistance =V/R=80/4=20 amps.
8Ω resistance=80/8=10 amps.
10Ω resistance=80/10=8 amps.
40Ω resistance=80/40=2amps.
A battery of 4.6 volt having negligible internal resistance is joined to a number of wires of resistances 4,6,9 ohms, all connected in series.
The Equivalent resistance =4+6+9=19Ω
We know that V=IR or I=V/R
There fore current through the circuit =4.6/19=0.242 amp
Resistance in parallel
Four resistance of values 4,8,10 and 40 ohms respectively are joined in parallel and current of 40 amperes is led into them.
I/R=1/4+1/8+1/10+1/40
=10+5+4+1/40=20/40=1/2
Therefore the equivalent resistance R=2 ohms
We know that V=I*R=40*2=80 volts.
Therefore, current pass through 4Ω resistance =V/R=80/4=20 amps.
8Ω resistance=80/8=10 amps.
10Ω resistance=80/10=8 amps.
40Ω resistance=80/40=2amps.
parallel |
series |
No comments:
Post a Comment