Question

An electronic device has a resistance of 220 ohms and 22V voltage across the device. What is the current flowing through the device? (5 mark) 1=???mA​

Answer 1

Answer:

• The current flowing through the device is of 0.1 ampere.

Step-by-step explanation:

Given that:

• An electronic device has a resistance of 220 ohms and 22V voltage across the device.

To Find:

• What is the current flowing through the device?

We know that:

• I = V/R

Where,

• I = Electric current
• V = Potential difference = 22
• R = Resistance = 220

Finding the current flowing through the device:

⟶ I = 22/220

⟶ I = 1/10

⟶ I = 0.1

Hence,

• 0.1 Ampere of current flowing through the device.

Answer 2

Answer:

Given :-

• An electronic device has a resistance of 220 ohms and 22V voltage across the device.

To Find :-

• What is the current flowing through the device.

Formula Used :-

$\clubsuit$ Current Formula :

$\longmapsto \sf\boxed{\bold{\pink{I =\: \dfrac{V}{R}}}}$

where,

• I = Current
• V = Voltage
• R = Resistance

Solution :-

Given :

• Voltage = 22V
• Resistance = 220 Ω

According to the question by using the formula we get,

$\longrightarrow \sf I =\: \dfrac{22}{220}$

$\longrightarrow \sf I =\: \dfrac{\cancel{22}}{\cancel{22}0}$

$\longrightarrow \sf I =\: \dfrac{1}{10}$

$\longrightarrow \sf\bold{\red{I =\: 0.1\: Ampere}}$

$\therefore$ The current flowing through the device is 0.1 Ampere.

$\rule{150}{2}$

EXTRA FORMULA :

$\clubsuit$ Voltage Formula :

$\longmapsto \sf\boxed{\bold{\pink{V =\: IR}}}$

$\clubsuit$ Resistance Formula :

$\longmapsto \sf\boxed{\bold{\pink{R =\: \dfrac{V}{I}}}}$

where,

• V = Voltage
• I = Current
• R = Resistance