Resistance of a carbon resistor determined from colour codes is <math> <mo>(</mo> <mn>22000</mn> <mo>±</mo> <mn>5</mn> <mi mathvariant="normal">%</mi> <mo>)</mo> <mi mathvariant="normal">Ω</mi> </math> The colour of third band must be:

Magnetic energy stored in an inductor = 1 2 L I 2 <!- [endif]-><!- [endif]-> = 1 2 × 4 × 10 - 6 × ( 2 ) 2 = 8 μ J

Ask & Answer Question

Overview Physics Current Electricity Physics Class 12th

Resistance of a carbon resistor determined from colour codes is $(22000 \pm 5 %) Ω$ The colour of third band must be:

Option 1 -

Yellow

Option 2 -

Red

Option 3 -

Green

Option 4 -

Orange

2 Views | Posted 4 months ago

Asked by Shiksha User

1 Answer

Answered by

alok kumar singh | Contributor-Level 10

4 months ago

Correct Option - 1

Detailed Solution:

Magnetic energy stored in an inductor $= \frac{1}{2} {L I}^{2}$

$\begin{array}{r} = \frac{1}{2} \times 4 \times 10^{- 6} \times (2)^{2} \\ = 8 μ J \end{array}$

0 Upvotes 0 Downvotes

Similar Questions for you

A potentiometer wire of length 100 cm has resistance of 20 ohm. It is connected in series with an external resistance and a cell of emf 2 volt and of negligible internal resistance. A source of emf 20 mV is balance against a length of 40 cm of the potentiometer wire. What is the value of external resistance?

alok kumar singh

A battery of emf, 20 V is connected to resistances as shown in figure. The potential at the point C will be

alok kumar singh

Ohm’s law is valid if

alok kumar singh

Ohm's law is valid if I depends on V' linearly.

An object 1 cm tall is placed at 4 cm infront of a mirror, In order to produce an upright image of 3 cm height one needs a :-

alok kumar singh

In a step up transformer, if ratio of turns of primary to secondary is 1 : 10 and primary voltage is 230 V. If the load current is 2A, then the current in primary is :-

alok kumar singh

Get authentic answers from experts, students and alumni that you won't find anywhere else

On Shiksha, get access to

66k Colleges
1.2k Exams
681k Reviews
1800k Answers

Community GuidelinesUser Points System

QuestionsDiscussionsTags

Resistance of a carbon resistor determined from colour codes is $(22000 \pm 5 %) Ω$ The colour of third band must be:

1 Answer

Similar Questions for you

Learn more about...

Most viewed information

Share Your College Life Experience

Didn't find the answer you were looking for?

Need guidance on career and education? Ask our experts

Your Question

Resistance of a carbon resistor determined from colour codes is ( 22000 ± 5 % ) Ω The colour of third band must be:

1 Answer

Similar Questions for you

Learn more about...

Most viewed information

Share Your College Life Experience

Didn't find the answer you were looking for?

Need guidance on career and education? Ask our experts

Your Question

Resistance of a carbon resistor determined from colour codes is $(22000 \pm 5 %) Ω$ The colour of third band must be: