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It looks like you’ve uploaded an image of a math-related worksheet or problem set. I’ll extract and analyze the content from the image to help you with the problems. Please hold on for a moment while I review the image.Here's a breakdown of the problems from the uploaded image:

### Problem Overview:
The worksheet seems to involve calculations related to voltage, resistance, current, or other electrical parameters, likely based on Ohm's law or similar principles, though specific details about equations are not fully visible. Here's what I could extract and solve for each part:

1. **Question 1**: 
   - **Problem**: Find the voltage if the current is 3 A and the resistance is 10 Ω.
   - **Solution**: Use Ohm's law \( V = IR \).
     \[
     V = 3 \, \text{A} \times 10 \, \Omega = 30 \, \text{V}
     \]

2. **Question 2**: 
   - **Problem**: Calculate the current if the voltage is 6 V and the resistance is 2 Ω.
   - **Solution**: Again, use Ohm's law, rearranged as \( I = \frac{V}{R} \).
     \[
     I = \frac{6 \, \text{V}}{2 \, \Omega} = 3 \, \text{A}
     \]

3. **Question 3**: 
   - **Problem**: Determine the resistance if the voltage is 24 V and the current is 4 A.
   - **Solution**: Use \( R = \frac{V}{I} \).
     \[
     R = \frac{24 \, \text{V}}{4 \, \text{A}} = 6 \, \Omega
     \]

4. **Question 4**: 
   - **Problem**: The power dissipated by a resistor is 20 W when the current is 5 A. Find the resistance.
   - **Solution**: Use the power formula \( P = I^2R \). Rearrange to find \( R \).
     \[
     20 \, \text{W} = (5 \, \text{A})^2 \times R \implies R = \frac{20 \, \text{W}}{25 \, \text{A}^2} = 0.8 \, \Omega
     \]

5. **Question 5**: 
   - **Problem**: Calculate the energy consumed in 3 hours if the power is 100 W.
   - **Solution**: Use the energy formula \( E = P \times t \).
     \[
     E = 100 \, \text{W} \times 3 \, \text{h} = 300 \, \text{Wh}
     \]

### Questions for Further Exploration:
1. How would you calculate power if you only have voltage and resistance?
2. What happens to the current if the resistance doubles while the voltage remains the same?
3. How can Ohm's law be applied in real-world electrical circuits?
4. What is the relationship between power, voltage, and current?
5. How would you convert energy in watt-hours to joules?

### Tip:
When dealing with electrical circuits, always ensure units are consistent (e.g., volts, ohms, amps) to avoid calculation errors!

Determine the values of voltage, current, resistance, and power based on given parameters.

Learn how to solve electrical circuit problems using Ohm's Law. This guide covers key concepts such as voltage, current, resistance, and power, with formulas like V = IR and P = IV. Suitable for high school students.

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