Benson Idahosa University

PHY 121

Practice 324+ past questions for PHY 121 at Benson Idahosa University. Organized by topic with explanations. Free preview on Testwiz.

324+ questions31 topics100 LevelTopic summaries

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About PHY 121 at Benson Idahosa University

PHY 121 is a 100 Level course at Benson Idahosa University. Students preparing for PHY 121 exams on Testwiz get 324+ practice questions across 31 topics and topic summaries.

Instead of cramming the night before, students who practice by topic — Capacitor Charging and Discharging, Conductivity and SI Units, Ohm's Law and Voltage Drop Across Resistors, and more — build real familiarity with how Benson Idahosa University tests PHY 121, catch weak spots early with Testwiz's analytics, and walk into the exam with actual reps under their belt.

Topics covered

Capacitor Charging and DischargingConductivity and SI UnitsOhm's Law and Voltage Drop Across ResistorsVoltage Drop Across InductorsParallel Plate CapacitorsResistance and ResistivityInductors in ParallelMagnetic Fields and ForcesResistors in Parallel and Current DivisionElectric Flux and Gauss's LawCoulomb's LawKirchhoff's Voltage Law+19 more

Sample questions

1. An uncharged 20 μF capacitor is charged through a 100 Ω resistor by a 10 V battery. The time required for the capacitor to reach 63.2% of the supply voltage is

a.2.0 × 10⁻³ s

b.2.0 × 10⁻⁴ s

c.2.0 × 10⁻² s

d.2.0 × 10⁻¹ s

2. The SI unit of conductivity is

a.Ω⁻¹m⁻¹

b.Ω·m

c.Ω⁻¹m

d.Ω·m⁻¹

3. The voltage drop across a resistor carrying a current I is given by

a.V = IR

b.V = I/R

c.V = R/I

d.V = I²R

4. The voltage drop across an inductor of inductance L with a time-varying current i(t) is given by

a.V = L di/dt

b.V = L ∫ i dt

c.V = (1/L) di/dt

d.V = L i

5. The capacitance C of a parallel plate capacitor with plate separation d and plate area A is given by

a.C = ε₀A/d

b.C = ε₀d/A

c.C = A/(ε₀d)

d.C = ε₀Ad

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Frequently asked questions

How many PHY 121 past questions are on Testwiz?

Testwiz has 324+ PHY 121 practice questions for Benson Idahosa University, organized across 31 topics. Sign up free to start practicing.

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Yes, every student gets a free preview of PHY 121 questions on Testwiz. The full question bank, explanations, and weak-spot analytics are available on Pro.

What topics does PHY 121 cover on Testwiz?

PHY 121 on Testwiz covers Capacitor Charging and Discharging, Conductivity and SI Units, Ohm's Law and Voltage Drop Across Resistors, and more. Practice on Testwiz to see the full topic breakdown and sample questions.