1) Which law states that the magnetic field around an electric current is proportional to the current; each segment of current produces a magnetic field like that of a long straight wire, and the total field of any shape current is the vector sum of the fields due to each segment? a) Biot-Savart Law b) Ampere's Law c) Ohms Law d) Kirchhoff’s Law 2) What law is used to calculate the magnitude and direction of the magnetic field produced by a current in a wire? a) Kirchhoff’s Law b) Ampere's Law c) Ohms Law d) Biot-Savart Law 3) What is the time constant in an RC series circuit, V= 5.0V, R = 10kΩ, and C = 1800µF? a) 20s b) 19s c) 18s d) 21s 4) What happens to the kinetic energy of a charged particle moving in a uniform magnetic field? a) Increases b) Oscillates c) Decreases d) Remains constant 5) When applying the loop rule, a voltage drop across a resistor in the direction of the loop traversal is considered? a) Infinite b) Zero c) Positive d) Negative 6) What does Kirchhoff's loop rule (voltage law) state is conserved? a) Current b) Charge c) Energy d) Resistance 7) Where must a voltmeter always be connected to; to measure potential difference? a) To the positive terminal only b) To the negative terminal only c) In series with the component d) In parallel with the component 8) Which component is used to protect a circuit from excessive current? a) Voltmeter b) Fuse c) Ammeter d) Switch 9) What happens if one resistor is broken or a fault occurs in a series circuit? a) The entire circuit is turned off. b) Only the resistor immediately after the break stops working. c) The current increases to find another path. d) The other resistors continue to work normally. 10) When is electromotive force (emf) the potential difference measured? a) Across a resistor in the circuit b) When current is flowing in the circuit c) Across the internal resistance only d) When no current is flowing (open circuit) 11) What law states that “Current is directly proportional to the voltage and inversely proportional to the resistance"? a) Coulomb’s Law b) Gauss’s Law c) Gravitational Law d) Ohm’s Law 12) What quantity measures how much electric charge flows through a circuit? a) Protons b) Voltage c) Current d) Electrons 13) What is the total capacitance for three capacitors connected in series, given their individual capacitances are C1 = 1 μF, C2 = 5 μF, and C3 = 8 μF. a) 0.765 μF b) 0.755 μF c) 0.775 μF d) 0.785 μF 14) In which direction does conventional current flow relative to the positive terminal of a power source? a) Alternates direction b) Away from the positive terminal c) Towards the positive terminal d) Does not flow 15) What is the definition of electric potential? a) The work done to move a charge in an electric field. b) The electric potential energy per unit charge. c) The force between two charges. d) The electric field strength per unit charge. 16) Which quantity remains the same across all capacitors, in a parallel circuit? a) Potential difference b) Charge c) Capacitance d) Stored energy 17) What is the voltage of a battery connected to a parallel plate capacitor with a plate area of 2.00x10-2 m2 and a plate separation of 2.0x10-3 m if the charge stored is 4.00x10-12 C? a) .02 V b) .09 V c) .03 V d) .05 V 18) What is the total equivalent capacitance if three capacitors (3 μF, 6 μF, and 12 μF) are connected in parallel? a) 1.71 μF b) 1.0 μF c) 21 μF d) 0.58 μF 19) Which simple experiment demonstrates charging by rubbing? a) Placing a magnet near a metal object. b) Rubbing a balloon on hair and observing it stick to a wall. c) Connecting a metal sphere to a high voltage source. d) Holding a charged rod near an electroscope without touching it. 20) What does the superposition principle state regarding the total electric field at a point due to a system of multiple charges? a) The vector sum of the individual electric fields b) The product of the individual electric fields. c) The average of the individual electric fields. d) The scalar sum of the individual electric fields. 21) What is the final value of charge stored on either plate of a capacitor (4x10-6 F) when connected across a 12 V battery? a) 4.8 x 10-4 C b) 4.8 x 10-5 C c) 4.8 x 10-7 C d) 4.8 x 10-6 C 22) Where do electric field lines originate? a) North poles b) Negative Charges c) South poles d) Positive Charges 23) What do stationary charges produce? a) Only a magnetic field b) Both electric and magnetic fields c) Only an electric field d) No fields 24) When a charged particle moves perpendicular to a uniform magnetic field, the magnetic force does work on the particle? a) True b) False c) Sometimes true d) Cannot be determined 25) What is called a wire that allows charges to flow through it? a) Current-carrying insulator b) Current-carrying conductor c) Voltage-carrying conductor d) Voltage-carrying insulator

Review Quiz Physics

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