When an emergency transmitter uses 325 watts...

Question 1 / 20uNBV5ue9z7cYMErbra3o

Question 1 of 20uNBV5ue9z7cYMErbra3o

When an emergency transmitter uses 325 watts and a receiver uses 50 watts, how many hours can a 12.6 volt, 55 ampere-hour battery supply full power to both units?

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Question 1 of 20

uNBV5ue9z7cYMErbra3o

When an emergency transmitter uses 325 watts and a receiver uses 50 watts, how many hours can a 12.6 volt, 55 ampere-hour battery supply full power to both units?

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🔍 Key Concepts

• Power, current, and voltage relationship: ( P = V \times I ) and how to solve for current when power and voltage are known • Ampere-hours (Ah) and how they relate to current and time: ( ,\text{Ah} = I \times t ,) • Adding the total power of multiple devices to find the combined load on the battery

💭 Think About

• How can you find the total power used by the transmitter and receiver together before doing anything else? • Once you know the total power and the battery voltage, how can you calculate the total current draw from the battery? Which formula links power, voltage, and current? • After finding the current draw, how does the battery’s ampere-hour rating tell you how long it can supply that current?

✅ Before You Answer

• Be sure you add the two power values (325 W and 50 W) to find the total power first • Use the correct formula: ( I = \frac{P}{V} ) with total power and battery voltage to get current in amperes • Check that you use the battery rating 55 ampere-hours with ( t = \frac{\text{Ah}}{I} ) to find time in hours, not minutes or seconds

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Question 1 of 20

When an emergency transmitter uses 325 watts and a receiver uses 50 watts, how many hours can a 12.6 volt, 55 ampere-hour battery supply full power to both units?

1. 8 hours.

6 hours.

3 hours.

1.2 hours.

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Question 1 / 20uNBV5ue9z7cYMErbra3o

Question 1 of 20uNBV5ue9z7cYMErbra3o

When an emergency transmitter uses 325 watts and a receiver uses 50 watts, how many hours can a 12.6 volt, 55 ampere-hour battery supply full power to both units?

Back

Question 1 of 20

uNBV5ue9z7cYMErbra3o

When an emergency transmitter uses 325 watts and a receiver uses 50 watts, how many hours can a 12.6 volt, 55 ampere-hour battery supply full power to both units?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed