Physics: Ohm's Law and Electrical Safety

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Questions and Answers

According to Ohm's Law, which formula represents the relationship between voltage (V), current (I), and resistance (R)?

V = IR (correct)
V = I + R
V = I - R
V = I / R

The power rating of an appliance is measured in watts.

True (A)

What does a resistor's color code represent?

Resistance value

A standard unit of power commonly used for household appliances is the ______.

<p>kilowatt</p> Signup and view all the answers

Match the following types of batteries with their characteristics:

<p>Lead-acid = Used in vehicles and delivers high current Lithium-ion = Rechargeable and commonly used in portable devices Nickel-cadmium = Has memory effect and used in rechargeable applications Alkaline = Commonly used in household batteries and non-rechargeable</p> Signup and view all the answers

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