QuestionUsing a digital meter, Joan read the voltage output of a transformer. If she read 130.19 volts, and the maximum voltage allowed for the equipment she was supplying was 123.5 volts, how much voltage over the maximum was the reading?
Studdy Solution
STEP 1
What is this asking?
How much higher is the **measured voltage** than the **allowed voltage**?
Watch out!
Don't mix up which voltage is bigger!
We're looking for the *excess* voltage.
STEP 2
1. Find the difference
STEP 3
We want to find out how much *larger* the **measured voltage** is than the **maximum allowed voltage**.
This means we need to *subtract* the **maximum allowed voltage** from the **measured voltage**.
Think of it like this: if you have 5 apples and your friend has 3, you have more apples than your friend.
Here, our "apples" are volts!
STEP 4
So, we'll subtract the **maximum allowed voltage**, which is volts, from the **measured voltage**, which is volts:
STEP 5
This result, volts, tells us exactly how much *higher* the **measured voltage** is than the **allowed voltage**.
It's the *excess* voltage!
STEP 6
The reading was volts over the maximum.
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