General Study Notes

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Questions and Answers

Match the following components with their functions in a circuit:

Voltmeter = Measures voltage Ammeter = Measures current Resistance = Opposes current flow Rheostat = Controls current in a circuit

Match the following Ohm's Law formulas with their descriptions:

V = I * R = Voltage formula I = V / R = Current formula R = V / I = Resistance formula I = R * V = Incorrect formula

Match the following series circuit characteristics:

Current = Same through all components Voltage = Sum across all components Resistance = Sum of individual resistances Power = May vary across components

Match the following terms with their definitions:

Voltage = Electric potential difference Current = Flow of electric charge Resistance = Opposition to current Rheostat = Variable resistor Signup and view all the answers

Match the following aspects of resistance calculation with their corresponding readings:

Voltage (V) = Measured in volts Current (I) = Measured in amperes Resistance (R) = Calculated as V/I Constant = Determined by voltage and current relationships Signup and view all the answers

Match the following types of circuits with their descriptions:

Series circuit = Components connected end-to-end Parallel circuit = Components connected across the same voltage Rheostat circuit = Used for controlling current Short circuit = Direct connection causing high current Signup and view all the answers

Match the following components based on their readings in the experiment:

Voltmeter reading 0.8 = Current reading 0.15A Voltmeter reading 1.0 = Current reading 0.19A Voltmeter reading 1.2 = Current reading 0.23A Voltmeter reading 0.5 = Current reading 0.10A Signup and view all the answers

Match the following equations with their corresponding descriptions:

I = V/R = Calculating current using voltage and resistance 1/Req = 1/R₁ + 1/R₂ = Calculating equivalent resistance in parallel circuits V = IR = Voltage across a component in terms of current and resistance I = I₁ + I₂ = Total current in a parallel circuit Signup and view all the answers

Match the following components with their roles in a circuit:

Ammeter = Measuring current Voltmeter = Measuring voltage Resistor = Limiting current flow Battery = Providing voltage supply Signup and view all the answers

Match the following safety precautions with their purposes:

Using insulated tools = Preventing electric shocks Disconnecting power before repairs = Avoiding hazards during servicing Ensuring circuit components are rated for the voltage = Preventing component failure Wearing rubber-soled shoes = Reducing risk of electric shock Signup and view all the answers

Match the following types of logic gates with their functions:

AND Gate = Output is ON only if all inputs are ON OR Gate = Output is ON if at least one input is ON NOT Gate = Inverts the input signal NOR Gate = Output is OFF if any input is ON Signup and view all the answers

Match the following resistances with their respective formulas:

R = V/I = Resistance calculated from voltage and current 1/Req = 1/R₁ + 1/R₂ = Equivalent resistance formula for parallel circuits R_total = R₁ + R₂ = Total resistance in series circuits R = V/I₁ = Resistance for resistor 1 in parallel circuit Signup and view all the answers

Match the following observations with their values:

Voltage V (volts) - Observation 1 = 6 volts Current I₁ (amp) - Observation 2 = 0.04 amp Resistance R₁ (Ω) - Observation 3 = 160 Ω Total Resistance (Ω) = 66.7 Ω Signup and view all the answers

Match the following symbols with their corresponding circuit components:

Battery = Indicates power source Resistor = Opposes current flow Key = Switch to open or close circuit LED = Indicator for current flow Signup and view all the answers

Match the following terms related to series circuits with their definitions:

Combined Resistance (R) = Sum of individual resistances in series Current (I) = Same through all components in series Voltage (V) = Total potential difference across the resistors Resistors (R₁, R₂, R₃) = Connected end to end consecutively Signup and view all the answers

Match the terms with their corresponding formulas in Ohm's Law:

Resistance (R) = V/I Voltage (V) = IR Current (I) = V/R Resistance of a single resistor (R₁) = V₁/I₁ Signup and view all the answers

Match the following types of circuit connections to their characteristics:

Series Circuit = Current is the same through all components Parallel Circuit = Voltage is the same across each branch Combined Resistance = Less than the smallest resistor in the circuit Circuit Safety Precaution = Tight connections to prevent short circuits Signup and view all the answers

Match the responsibilities of the measurement devices in the circuit:

Voltmeter = Measures voltage across a component Ammeter = Measures current flowing in the circuit Battery = Supplies electrical energy Key = Controls the flow of current in the circuit Signup and view all the answers

Match the following precautions with their descriptions:

Clean connecting wires = Ensures proper contact Remove plug before connecting = Prevents circuit shorting Use low range ammeter = Ensures readable deflection Tight connections = Reduces resistance at junctions Signup and view all the answers

Match the observations with their corresponding experiments:

Resistance R₁ calculated = Using V₁ and I₁ Resistance R₂ calculated = Using V₂ and I₂ Voltage of battery = Given as 6 volts Combined resistance R = Calculated using total V and I Signup and view all the answers

Match the elements of parallel circuits with their effects:

Voltage across resistors = Remains constant in parallel Total current in the circuit = Sum of individual branch currents Resistance in parallel = Always less than the smallest individual resistor Connecting resistors in parallel = Allows for alternative paths for current Signup and view all the answers

Match the following pairs of conductors with their properties:

Copper wire = Commonly used for connections Voltmeter connection = Connected in parallel Ammeter connection = Connected in series Standard resistance = Used to control current flow Signup and view all the answers

Flashcards

Resistors in Parallel

Resistors connected side-by-side, with their ends connected together. The same voltage is applied across each resistor, but the total current is split amongst them.

Parallel Resistor Formula

The formula to calculate the total resistance (Req) of resistors in parallel. 1/Req = 1/R₁ + 1/R₂ + ...

Voltage in Parallel

The voltage (potential difference) across each resistor in a parallel circuit is the same and equal to the voltage across the entire circuit.

Current in Parallel

The total current flowing into the parallel circuit is equal to the sum of the currents flowing through each individual resistor.