VSAQ-1 : List out the material required to verify Ohm’s law experiment.
Materials Required for Verifying Ohm’s Law Experiment
Ammeter: To measure the current passing through the circuit.
Voltmeter: To measure the voltage across the circuit.
5 dry cells of 1.5V each: To provide the power source for the circuit.
Conducting wires: To connect the components in the circuit.
Iron/Manganin spoke of length 10 cm: To act as a resistor in the circuit.
Switch or key: To control the flow of current in the circuit.
LED: To indicate the presence of current in the circuit.
VSAQ-2 : Write any two differences between ohmic and non-ohmic conductors.
Ohmic Conductors:
Ohm’s Law Compliance: They obey Ohm’s law, where the current is directly proportional to the voltage across the conductor.
Material Examples: Ohmic conductors are typically metallic conductors like copper, aluminum, etc.
V-I Graph Characteristics: The V-I (voltage-current) graph for ohmic conductors is a straight line.
Non-Ohmic Conductors:
Non-Compliance with Ohm’s Law: They do not obey Ohm’s law and do not have a linear relationship between current and voltage.
Material Examples: Non-ohmic conductors can be semiconductor materials like silicon or germanium.
V-I Graph Characteristics: The V-I graph for non-ohmic conductors is a curve or a non-linear graph, indicating the non-proportional relationship between current and voltage.
VSAQ-3 : Draw the electric circuit with the help of a battery, voltmeter, ammeter, resistance and connecting wires.
Components and Configuration of an Electric Circuit
Battery (B): Provides the power source for the circuit.
Ammeter (A): Connected in series to measure the current flowing through the circuit.
Voltmeter (V): Connected in parallel to measure the voltage across the resistor.
Resistor (R): Acts as the load or component that restricts the flow of current in the circuit.
Connecting Wires: Complete the circuit and allow the flow of current from the battery to the resistor and back to the battery.
VSAQ-4 : What happens, if the household electric appliances are connected in series?
Implications of Connecting Household Electric Appliances in Series
Chain-like Connection: When household electric appliances are connected in series, they are connected in a chain-like manner where the current flows through one appliance and then the next in sequence.
Circuit Interruption: If one appliance in the series circuit fails or becomes disconnected, it breaks the circuit, and the flow of current stops.
Downstream Effect: As a result, all the appliances downstream of the failed appliance will stop working until the issue is resolved.
Drawback: This is one of the drawbacks of connecting appliances in series, and it is more common to connect them in parallel to avoid such interruptions in case of a single appliance failure.
