Advertisements
Advertisements
Question
A potential difference of 6 V is applied across a 3 Ω resistor. What is the current flowinq throuqh the circuit?
Solution
Let I be the current flowing through it.
Given, potential difference, V 6 volt and Resistance, R = 3 Ω
AIC to Ohm's law,
I= `"V"/"R" = 6/3` = 2 A
APPEARS IN
RELATED QUESTIONS
What determines the rate at which energy is delivered by a current?
State two factors on which the electrical energy consumed by an electrical appliance depends.
What is the maximum power in kilowatts of the appliance that can be connected safely to a 13 A ; 230 V mains socket?
Distinguish between kilowatt and kilowatt-hour.
When a current I flows through a resistance R for time t, the electrical energy spent is given by:
(a) IRt (b) I²Rt (c) `IR^2t` (d) `I^2R ⁄t`
A battery of e.m.f 15 V and internal resistance 2 Ω is connected to two resistors of resistance 4 ohm and 6 ohm joined in series. Find the electrical energy spent per minute in 6 ohm resistor.
A current passes through a resistor. Let K1 and K2 represent the average kinetic energy of the conduction electrons and the metal ions, respectively.
Two resistances R1 = 4Ω and R2 = 6Ω are connected in series. The combination is connected with a battery of e.m.f. 6V and negligible resistance. Calculate:
(i) the heat produced per minute in each resistor,
(ii) the power supplied by the battery.