A student connects a battery to a light bulb using wires, creating a closed simple circuit. The student connects an ammeter to the circuit and places a compass next to the wires. The student then decides to connect a second battery to the circuit. Which statement describes the changes that will occur after connecting the second battery?(1 point)
The compass will detect an increase in current, and the ammeter will detect a stronger magnetic field.
The compass will detect an increase in current, and the ammeter will detect a weaker magnetic field.
The ammeter will detect an increase in current, and the compass will detect a weaker magnetic field.
The ammeter will detect an increase in current, and the compass will detect a stronger magnetic field.
The answer should be D :)
The ammeter will detect an increase in current, and the compass will detect a stronger magnetic field.
To determine the changes that will occur after connecting the second battery in the given circuit, let's consider the effects of adding another battery.
When a second battery is added in parallel to the existing battery in a closed simple circuit, the voltage across the circuit increases. This increase in voltage will result in an increase in the amount of current flowing through the circuit, as stated by Ohm's Law (V = IR) which states that current is directly proportional to the voltage.
So, after connecting the second battery, the ammeter will detect an increase in current. This is because the increased voltage will drive more electrons to flow through the wires and the bulb, resulting in a greater current reading on the ammeter.
Now, let's consider the effect on the compass. A compass detects magnetic fields, and in this circuit setup, the flow of current through the wires creates a magnetic field around them. When the current increases due to adding the second battery, the magnetic field strength also increases. Therefore, the compass will detect a stronger magnetic field.
Based on this analysis, the correct statement that describes the changes that will occur after connecting the second battery is:
The ammeter will detect an increase in current, and the compass will detect a stronger magnetic field.