Question

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A circuit contains a 1.5 volt battery and a bulb with a resistance of 3 ohms. Calculate the current.

Question 1 options:

0.5 amps


4.5 amps


4.5 volts


0.5 ohms

Question 2 (3 points)

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A 12 Volt car battery pushes charge through the headlight circuit resistance of 10 ohms. How much current is passing through the circuit?

Question 2 options:

120 volts


1.2 ohms


120 ohms


1.2 amps

Question 3 (3 points)

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If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the circuit?

Question 3 options:

1440


10 amps


10 ohms


1440 ohms

Question 4 (3 points)

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A subwoofer needs a household voltage of 110 V to push a current of 5.5 A through its coil. What is the resistance of the subwoofer?

Question 4 options:

605


20 volts


20 ohms


605 ohms

Question 5 (3 points)
Saved

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How much voltage would be necessary to generate 10 amps of current in a circuit that has 5 ohms of resistance?

Question 5 options:

50 ohms


2 volts


2 amps


50 volts

Answer 1

Let's solve these questions one by one using Ohm's Law, which states:

\[ V = I \times R \]

Where:
- \( V \) is voltage in volts (V),
- \( I \) is current in amperes (A), and
- \( R \) is resistance in ohms (Ω).

### Question 1:
**Given:**
- Voltage \( V = 1.5 \) volts
- Resistance \( R = 3 \) ohms

Using Ohm's Law, we can solve for current \( I \):
\[ I = \frac{V}{R} = \frac{1.5}{3} = 0.5 \text{ amps} \]

**Correct Answer: 0.5 amps**

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### Question 2:
**Given:**
- Voltage \( V = 12 \) volts
- Resistance \( R = 10 \) ohms

Using Ohm's Law:
\[ I = \frac{V}{R} = \frac{12}{10} = 1.2 \text{ amps} \]

**Correct Answer: 1.2 amps**

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### Question 3:
**Given:**
- Voltage \( V = 120 \) volts
- Resistance \( R = 12 \) ohms

Using Ohm's Law:
\[ I = \frac{V}{R} = \frac{120}{12} = 10 \text{ amps} \]

**Correct Answer: 10 amps**

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### Question 4:
**Given:**
- Voltage \( V = 110 \) volts
- Current \( I = 5.5 \) amps

Using Ohm's Law to find resistance \( R \):
\[ R = \frac{V}{I} = \frac{110}{5.5} = 20 \text{ ohms} \]

**Correct Answer: 20 ohms**

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### Question 5:
**Given:**
- Current \( I = 10 \) amps
- Resistance \( R = 5 \) ohms

Using Ohm's Law to find voltage \( V \):
\[ V = I \times R = 10 \times 5 = 50 \text{ volts} \]

**Correct Answer: 50 volts**

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To summarize:
1. 0.5 amps
2. 1.2 amps
3. 10 amps
4. 20 ohms
5. 50 volts