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What is the resistance of a relay coil at 28 V, 0.1 A?

2 Answers

2 votes

Answer:

280 ohms

Step-by-step explanation:

I = V/R

Then you make R the subject of the formula

R = V/I

R = 28/0.1

R= 280 ohms

User Baek
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Answer: Remember the formula V = IR ?

That’s all you need.

You know the current through the resistor, and you can easily work out the voltage drop required across the resistor, so it’s a bit of simple arithmetic to work out the value of R required.

Now do your own homework

Step-by-step explanation:

User Bshears
by
3.3k points