In series combination, resister are connected end to end and current has a single path through the circuit but the potential difference varies across each resistor. Thus we can write as,
V = V1 + V2 + V3
according to Ohm's law V = IR So,
V1 = I R1, V2 = I R2, V3 = I R3
V = I R1 + I R2 + I R3
V = I(R1+R2+R3)
V =IRe
All the individual resistances become equal to the equivalent resistance.
or Re = R1 + R2 + R3......Rn
In parallel combination, each resistor'sone is connected to the positive terminal while the other end is connected to a negative terminal. The potential difference across each resistance is the same and the current passing through them is different.
V = V1 =V2=V3
I = I1+ I2+I3
Current throught each resistor will be:
I1= V/R1 , I2 = V/R2 = I3 = V/R3
I = V (1/R1+ 1/R2+1/R3)
In case of equivalent resistance I=V/Re
V/Re = V (1/R1+ 1/R2+1/R3)
So the equivalnet resistance is the sum of all resistances
1/Re = 1/R1+ 1/R2+1/R3
it is violet , because it has the highest energy and fastest oscillation .
The relation between the electric intensity and electric flux is that the electric flux is equal to the scalar product of electric flux intensity and vector area.
<h3>What is the relation between electric intensity and flux?</h3>
The electric field is the field, which is surrounded by the electric charged. The electric field is the electric force per unit charge.
- The intensity of this electric field is the number of electric field lines which are pass perpendicular to the unit element of fixed area.
- The flux of this electric field is the number of electric field lines which are pass normally to the fixed area.
The electric flux can be given as,

When angle is zero,

Thus, the total flux is,

Thus, the relation between the electric intensity and electric flux is that the electric flux is equal to the scalar product of electric flux intensity and vector area.
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Answer:
filament bulb, filament lamp
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as A increases, B decreases, and as B increases, A increases. Hope this helps!
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