1.1.1.4 Worksheet - Ohms Law

IT Essenti ls 5.0

.1.1.4 Worksheet  - Ohm’s Law rint and co plete this worksheet. In this worksheet, you will nswer questions based on Electricity nd Ohm’s L w. Show all teps when solving roblems. ote: The amounts used i  these probl ms may not be realistic. 1.

What are the four basi  units of ele tricity? Provide the variable name and symbol, and unit name and symbol.

Voltage (V) is measured in volts (V). Current (I) is measured in amperes (A). R esistance (R) is measured in ohms ( Ω). Power (P) is measured in watts (W).

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Write the equation for

hm’s Law.

V=IR

. Re-arran e the Ohm’s Law equatio  to solve the following: I = V/R

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Power is qual to voltage times cur  ent. Add the missing infor mation in ea h of the following power equations. P=V I

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R = V/I

P = R I^2

2 P = V /2

The yello wire connected to a po er supply ca ries 12V. If t e power supply provides 60W of power to the yellow wi e, how much current is passing throug  the yellow ire?

5 amps

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There are 3.3V passing through an orange power supply cable, and there are 0.025 oh s of resista ce in the orange wire. How much power is supplied to the orange wire by the power  supply? 435.6 watts

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A wire from the power supply is car  ying 120W of power and 4A of curre t. Which color(s) of cable is the wire? Red

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