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Post Utme Physics Past QuestionsQuestion 101:Determine the inductive reactance when a \(30.0 \mathrm{mH}\) inductor with negligible resistance is connected to a \(1.3 \mathrm{KHz}\) oscillator A. \(39.0 \Omega\) B. \(122.5 \Omega\) C. \(245.0 \Omega\) D. \(39 \mathrm{~K} \Omega\) Question 102:The half-life of a radioactive clement is 9days. Calculate the fraction that remains after 36 days. A. \(1 / 32\) B. \(1 / 16\) C. \(1 / 4\) D. \(15 / 32\) Question 103:The graphite rods surrounding the uranium fuel rods in a nuclear reactor are used to ____________ A. Absorb the neutrons and hence halt the nuclear process B. Create the neutrons- and hence slow down the nuclear process C. Slow down the neutrons and hence slow down the nuclear process D. Speed up the neutrons and hence speed up the nuclear process Question 104:The force on a current carrying conductor in a magnetic field is greatest when the ____________ A. Conductor makes an angle of 60 with the field B. Force is independent of the angle between the field and the conductor C. Conductor is parallel with the field D. Conductor is at right angles with the field Question 105:A moving Coil galvanometer of 300 c resistance gives full scale deflection for \(1.0 \mathrm{~mA}\). The resistance, \(R\), of the shunt that is required to convert the galvanometer into a \(3.0 \mathrm{~A}\) ammeter is ____________ A. \(899.70 \Omega\) B. \(10.00 \Omega\) C. \(0.10 \Omega\) D. \(0.01 \Omega\) |
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