✅ Total Questions: 50
🔢 4 Options per question with answers
📘 Covers: Physics, Chemistry, Mathematics, and Electrical Engineering
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📘 Mock Test 5 – WBJEE JELET 2025
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1. The derivative of is:
A.
B.
C.
D.
Answer: A
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2. Which of the following is an Ohmic conductor?
A. Vacuum tube
B. Diode
C. Metal wire
D. Transistor
Answer: C
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3. What is the chemical symbol of potassium?
A. K
B. P
C. Po
D. Pt
Answer: A
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4. Acceleration due to gravity on Earth is approximately:
A.
B.
C.
D.
Answer: A
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5. What is the unit of electric power?
A. Watt
B. Volt
C. Ohm
D. Ampere
Answer: A
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6. The value of :
A. 1
B. 2
C. 10
D. 100
Answer: B
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7. Which one is a semiconductor?
A. Copper
B. Aluminium
C. Silicon
D. Iron
Answer: C
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8. The pH of a neutral solution is:
A. 1
B. 14
C. 7
D. 0
Answer: C
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9. The square of is:
A. 10
B. 25
C. 5
D.
Answer: C
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10. Kirchhoff’s current law is based on:
A. Energy conservation
B. Mass conservation
C. Charge conservation
D. Power conservation
Answer: C
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11. Which of the following is an insulator?
A. Silver
B. Copper
C. Plastic
D. Aluminium
Answer: C
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12. What is the formula of copper sulfate?
A. CuSO₄
B. Cu₂SO₄
C. CuS
D. Cu₂O
Answer: A
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13. Capacitance is measured in:
A. Ohm
B. Volt
C. Farad
D. Coulomb
Answer: C
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14. In a pure capacitive circuit, the current:
A. Lags voltage
B. Leads voltage
C. Is in phase with voltage
D. Is zero
Answer: B
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15. The inverse of a NOT gate is:
A. AND
B. OR
C. NOT
D. None
Answer: C
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16. The unit of frequency is:
A. Newton
B. Hertz
C. Volt
D. Ampere
Answer: B
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17. The chemical used in photography is:
A. Sodium chloride
B. Silver bromide
C. Calcium carbonate
D. Potassium nitrate
Answer: B
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18. Work is equal to:
A. Force × Time
B. Force × Distance
C. Mass × Acceleration
D. Energy × Time
Answer: B
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19. 1 mole of a substance contains:
A. particles
B. particles
C. particles
D. particles
Answer: B
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20. Binary number 1111 is equal to decimal:
A. 15
B. 14
C. 13
D. 12
Answer: A
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21. Unit of magnetic flux:
A. Tesla
B. Weber
C. Henry
D. Farad
Answer: B
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22. Which device converts AC to DC?
A. Inverter
B. Rectifier
C. Transformer
D. Inductor
Answer: B
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23. The square root of 49 is:
A. 5
B. 6
C. 7
D. 8
Answer: C
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24. The value of :
A.
B. 0.5
C. 1
D. 0
Answer: B
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25. Which gate gives output 0 when all inputs are 1?
A. AND
B. OR
C. NAND
D. XOR
Answer: C
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26. What is the current if voltage = 10V and resistance = 5Ω?
A. 2A
B. 5A
C. 10A
D. 15A
Answer: A
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27. AC means:
A. Alternative Charge
B. Alternating Current
C. Average Current
D. Amplified Current
Answer: B
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28. The number of electrons in a hydrogen atom:
A. 0
B. 1
C. 2
D. 3
Answer: B
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29. Ohm's law is:
A. V = IR
B. V = I/R
C. I = VR
D. R = V + I
Answer: A
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30. The shape of s-orbital is:
A. Dumbbell
B. Spherical
C. Circular
D. Elliptical
Answer: B
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31. Differentiation of a constant is:
A. 0
B. 1
C. a
D. Not defined
Answer: A
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32. Which element is used in electric bulbs?
A. Copper
B. Iron
C. Tungsten
D. Carbon
Answer: C
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33. Which of the following is a noble gas?
A. Hydrogen
B. Oxygen
C. Neon
D. Nitrogen
Answer: C
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34. In an AND gate, output is 1 only if:
A. Any input is 1
B. All inputs are 0
C. All inputs are 1
D. Inputs differ
Answer: C
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35. What is the SI unit of force?
A. Watt
B. Joule
C. Newton
D. Pascal
Answer: C
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36. Binary of decimal 5 is:
A. 100
B. 101
C. 111
D. 110
Answer: B
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37. Which of the following has the highest conductivity?
A. Aluminium
B. Silver
C. Iron
D. Carbon
Answer: B
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38. What is the full form of E.M.F.?
A. Electro Magnetic Field
B. Electromotive Force
C. Energy of Magnetic Field
D. Electric Motor Force
Answer: B
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39. What is used in control of fan speed?
A. Resistor
B. Capacitor
C. Inductor
D. Diode
Answer: B
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40. The SI unit of pressure is:
A. Newton
B. Pascal
C. Joule
D. Bar
Answer: B
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41. What is the resistance of an ideal voltmeter?
A. Zero
B. Very low
C. Infinite
D. 100 ohms
Answer: C
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42. The largest 4-bit binary number is:
A. 1111
B. 1001
C. 1100
D. 1010
Answer: A
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43. What is the speed of light in vacuum?
A.
B.
C.
D.
Answer: A
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44. Acid turns litmus paper:
A. Blue
B. Red
C. Green
D. Yellow
Answer: B
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45. Coulomb is the unit of:
A. Voltage
B. Current
C. Resistance
D. Charge
Answer: D
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46. A circuit that allows current only in one direction is:
A. Transformer
B. Resistor
C. Capacitor
D. Diode
Answer: D
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47. Differentiation of :
A.
B.
C.
D.
Answer: A
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48. A Zener diode is used for:
A. Rectification
B. Amplification
C. Voltage regulation
D. Filtering
Answer: C
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49. NOT gate is also called:
A. Inverter
B. Amplifier
C. Buffer
D. Logic switch
Answer: A
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50. Which metal is liquid at room temperature?
A. Iron
B. Lead
C. Mercury
D. Aluminium
Answer: C
