Advertisements
Advertisements
प्रश्न
Two resistors of 4Ω and 6Ω are connected in parallel to a cell to draw 0.5 A current from the cell. Calculate the current in each resistor.
Advertisements
उत्तर
`1/"R" = 1/4 + 1/6`
R = 2.4 Ω
⇒ V = IR
V = 0.5 × 2.4 = 1.2 V
i1 = `"V"/"R"_1`
`= 1.2/4 = 0.3 "A"`
i2 = `1.2/6 = 0.2` A
APPEARS IN
संबंधित प्रश्न
Complete the following :-
(a)

Name the material which is the best conductor of electricity.
How does the resistance of a pure metal change if its temperature decreases?
A p.d. of 4 V is applied to two resistors of 6 Ω and 2 Ω connected in series. Calculate:
(a) the combined resistance
(b) the current flowing
(c) the p.d. across the 6 Ω resistor
Calculate the equivalent resistance between P and Q from the following diagram:
Calculate the value of the resistance which must be connected to a 15 ohm resistance to provide on effective resistance of 6 ohm.
Two resistors having 2Ω and 3Ω resistance are connected—(i) in series, and (ii) in parallel. Find the equivalent resistance in each case.
Two wires of the same length and area made of two materials of resistivity ρ1 and ρ2 are connected in series to a source of potential V. The equivalent resistivity for the same area is:
Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of 4 Ω.
