A) Principle of magnetic induction. B) Relationship between voltage, current, and resistance. C) Law of conservation of energy. D) Newton's second law of motion.
A) Voltage B) Volume C) Velocity D) Varistor
A) Resistance B) Inductance C) Current D) Impedance
A) Reactance B) Resistor C) Reluctance D) Resistance
A) Remains unchanged B) Increases C) Becomes negative D) Decreases
A) Current stays the same B) Current doubles C) Current triples D) Current halves
A) Ohm (Ω) B) Watt (W) C) Volt (V) D) Ampere (A)
A) Thomas Edison B) Georg Simon Ohm C) Michael Faraday D) Nikola Tesla
A) Biology B) Physics C) Electrical engineering D) Chemistry
A) Capacitor B) Resistor C) Transformer D) Diode
A) Becomes negative B) Increases C) Remains the same D) Becomes zero
A) I = V * R B) I = R / V C) I = V / R D) I = V - R
A) Current is directly proportional to voltage. B) Current is constant regardless of voltage. C) Voltage is inversely proportional to current. D) Resistance is exponential with current.
A) Ohm's Law B) Boyle's Law C) Newton's Law of Cooling D) Hooke's Law
A) 5 ohms B) 8 ohms C) 20 ohms D) 0.2 ohms
A) 1.33 volts B) 24 volts C) 12 volts D) 7 volts
A) Ohmic materials B) Non-ohmic materials C) Resistors D) Conductors
A) Volt B) Siemens C) Mho D) Ohm
A) Arnold Sommerfeld B) Felix Bloch C) Paul Drude D) J. J. Thomson
A) Bloch's model B) Quantum band theory of solids C) The free electron model D) The Drude model
A) Maxwell noise B) Johnson–Nyquist noise C) Quantum noise D) Thermal noise
A) Conductivity of the material B) Current density C) Electric field D) Resistivity of the material
A) Francis Ronalds B) Georg Ohm C) James Clerk Maxwell D) Henry Cavendish
A) Thermocouples B) Gold-leaf electrometer C) Leyden jars D) Voltaic piles
A) Voltmeter B) Oscilloscope C) Galvanometer D) Ammeter
A) 1827 B) 1879 C) 1855 D) 1814
A) Immediate acceptance and praise B) Support from the Minister of Education C) Hostility, calling it a 'web of naked fancies' D) Indifference
A) Experiments are essential for understanding nature. B) Scientific truths may be deduced through reasoning alone without experiments. C) Nature is chaotic and unpredictable. D) Mathematics has no role in science.
A) Electrons do not contribute to electrical conduction. B) Electrons are stationary in a conductor. C) Electrons only move when heated. D) Conduction electrons move randomly with a drift caused by an electric field.
A) Electrons move as waves through a solid crystal lattice. B) Electrons are stationary within the lattice. C) Electrons only scatter off other electrons. D) Electrons do not interact with the crystal lattice.
A) The atomic scale B) The quantum scale C) The macroscopic scale D) The microscopic scale
A) p = −eEτ B) R = V/I C) V = IR D) I = V/R
A) Division B) Subtraction C) Multiplication D) Addition
A) Non-ohmic device B) Ohmic device C) Reactive device D) Capacitive device
A) Long rectangle or zig-zag symbol B) Triangle pointing right C) Circle with an 'R' D) Square
A) Simple sinusoids B) Complex exponentials C) Linear functions D) Step functions
A) R, resistance B) L, inductance C) s, a complex parameter D) C, capacitance
A) Reactance B) Admittance C) Impedance (Z) D) Conductance
A) Z = L/s B) Z = sL C) Z = 1/sL D) Z = s/L
A) Z = C/s B) Z = 1/C C) Z = 1/(sC) D) Z = s/C
A) The imaginary part B) Both parts equally C) The real part D) Neither part
A) A parabola. B) A hyperbola. C) An exponential curve. D) A straight line.
A) At a variable temperature. B) At a constant temperature. C) Under varying pressure conditions. D) In an open circuit.
A) The Peltier effect. B) Joule's first law. C) The Seebeck effect. D) Ohm's principle.
A) Ohm's principle. B) Fourier's principle. C) Maxwell's equations. D) Joule's first law.
A) Capacitance B) Conductivity C) Resistivity D) Reactance
A) m_e n_e dv_e/dt = -n_e e E + n_e m_e ν (v_i - v_e) - e n_e v_e × B B) m_e n_e dv_e/dt = n_e e E + n_e m_e ν (v_i - v_e) - e n_e v_e × B C) m_e n_e dv_e/dt = n_e e E - n_e m_e ν (v_i - v_e) + e n_e v_e × B D) m_e n_e dv_e/dt = -n_e e E - n_e m_e ν (v_i - v_e) + e n_e v_e × B
A) σ = n_e e3 / (ν m_e) B) σ = n_e e / (ν m_e) C) σ = n_e e2 / (ν m_e) D) σ = n_e e2 ν m_e
A) ρ = σ / 2 B) ρ = σ + 1 C) ρ = σ × 2 D) ρ = σ-1 |