1Timer starts when you click "Start Test" — it counts down in real time
2Answer questions in any order using the navigation grid
3Mark questions for review and come back to them
4Submit before time runs out, or the test auto-submits
5Your score and answer key are shown immediately
Sample Questions from UDC 2015
Q1.An incandescent lamp is operated at 240 V and the current is 0.5 A. What is the resistance of the lamp?
A120 Ω
B480 Ω
C340 Ω
D240.5 Ω
Q2.'The magnitude of emf induced in a closed circuit is directly proportional to the rate of change of magnetic flux linked with the circuit'. This law is
AFaraday's first law of electromagnetic induction
BFaraday's second law of electromagnetic induction
CLenz's law
DFleming's right hand rule
Q3.Which of the following statement is incorrect?
Neutrons are neutral particles with no charge
A
BThe mass of the neutron is slightly greater than that of protons
CNeutrons are stable inside the nucleus and unstable outside the nucleus
DAs neutrons are neutral they cannot penetrate any nucleus
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