Question

A 5 ohm resistor is connected across a battery of 6V. Calculate the current flowing through the resistor the energy that displaces as heat in 10s.

Answer 1

The current flowing through the resistor is 1.2 amperes and the energy displaced as heat in 10 s is 72 joules.

Given,

The value of resistance = 5 Ω

A 6V battery is connected.

To Find,

The current flowing through the resistor and the energy displaced as heat in 10 s.

Solution,

Using the Ohm's law

V = R*I

where V is the voltage, R is the resistance and I is the current.

6 = 5*I

I = 6/5 = 1.2 Amperes

Now,

The heat produced = I²RT

The heat produced = (1.2)²*5*10

The heat produced = 72 Joules.

Hence, the current flowing through the resistor is 1.2 amperes and the energy displaced as heat in 10 s is 72 joules.

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Answer 2

Answer:

The current flowing through resistor is 1.2 ampere and energy displaced as heat in 10s is 72 joules.

Explanation:

As per the data given in the question,

we have,

Resistance(R)= 5 ohm [given]

Voltage(V)= 6 volt [given]

Current flowing through resistor(I) = V/R [ohm's law]

I = 6/5 = 1.2 ampere

Time for which energy needs to be calculated(T)= 10 seconds

Energy(E)= $I^{2} RT$

E= $(1.2)^{2}\times5\times10$ = 72 joules

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