Refer to JEE Physics Current Electricity MCQs Set D provided below available for download in Pdf. The MCQ Questions for Full Syllabus Physics with answers are aligned as per the latest syllabus and exam pattern suggested by JEE (Main), NCERT and KVS. Multiple Choice Questions for Current Electricity are an important part of exams for Full Syllabus Physics and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for JEE (Main) Full Syllabus Physics and also download more latest study material for all subjects
MCQ for Full Syllabus Physics Current Electricity
Full Syllabus Physics students should refer to the following multiple-choice questions with answers for Current Electricity in Full Syllabus.
Current Electricity MCQ Questions Full Syllabus Physics with Answers
Question: A 10 m long potentiometer wire is connected to a battery having a steady voltage. A Leclanche cell is balanced at 4 m length of the wire. If the length is kept the same, but its cross-section is doubled, the null point will be obtained at
- a) 4 m
- b) 2 m
- c) None of these
- d) 8 m
Answer: 4 m
Question: Of the two bulbs in a house hold circuit, one glows brighter than the other, Which of the two bulbs has a large resistance?
- a) The dim bulb
- b) The bright bulb
- c) Both have the same resistance
- d) The brightness does not depend upon the resistance
Answer: The dim bulb
Question: Two electric bulbs whose resistance are in the ratio of 1 : 2, are connected in parallel to a constant voltage source. The power dissipated in them has the ratio
- a) 2 : 1
- b) 1 : 1
- c) 1 : 4
- d) 1 : 2
Answer: 2 : 1
Question: The same mass of aluminium is drawn into two wires 1 mm and 2 mm thick. Two wires are connected in series and current is passed through them. Heat produced in the wire is in the ratio
- a) 16 : 1
- b) 8 : 32
- c) 8 : 2
- d) 4 : 2
Answer: 16 : 1
Question: How many 60 W bulbs may be safely run on 220 V using a 5 A fuse?
- a) 18
- b) 16
- c) 14
- d) 12
Answer: 18
Question:
- a) Decrease
- b) No change
- c) Increase
- d) Become zero
Answer: Decrease
Question: A 50 W bulb connected in series with a heater coil is put to an AC mains. Now the bulb is replaced by a 100 W bulb. The heater output will
- a) Increase
- b) Decrease
- c) Halve
- d) Double
Answer: Increase
Question:
- a) 4 J
- b) 64 J
- c) 32 J
- d) 2 J
Answer: 4 J
Question:
- a) 4P
- b) 7P
- c) 13P
- d) 17P
Answer: 4P
Question: Three identical resistors R1= R2= R3 are connected as shown to a battery of constant e.m.f. The power dissipated is
- a) Greatest in R1
- b) The least in R1
- c) Both
- d) None of these
Answer: Greatest in R1
Question: Four equal resistance dissipated 5 W of power together when connected in series to a battery of negligible internal resistance. The total power dissipated in these resistance when connected in parallel across the same battery would be
- a) 80 W
- b) 125 W
- c) 20 W
- d) 5 W
Answer: 80 W
More Questions..............................
Question: Two heater coils separately take 10 minute and 5 minute to boil certain amount of water. If both the coils are connected in series, the time taken will be
- a) 15 min
- b) 7.5 min
- c) 3.33 min
- d) 2.5 min
Answer: 15 min
Question: A cell sends a current through a resistance R for time t. Now the same cell sends current through another resistance r for the same time. If same amount of heat is developed in both the resistance, then the internal resistance of cell is
- a)
- b)
- c)
- d)
Answer:
Question:
- a) Zero
- b)
- c)
- d)
Answer: Zero
Question:
- a) 1 : 4
- b) 4 : 1
- c) 2 : 1
- d) 1 : 1
Answer: 1 : 4
Question:
- a)
- b)
- c)
- d) P
Answer:
Question:
- a)
- b)
- c)
- d)
Answer:
Question: Select the correct statement
- a) Resistance is the opposition to the flow of current
- b) Resistivity of a conductor decreases with increase in temperature
- c) Electric current is a vector quantity
- d) Current density is a scalar quantity
Answer: Resistance is the opposition to the flow of current
Question:
- a) 5 A
- b) 1 A
- c) 0.2 A
- d) Zero
Answer: 5 A
Question:
- a) 2r
- b) r
- c)
- d)
Answer: 2r
Question:
- a)
- b)
- c)
- d) 5 A
Answer:
Question:
- a) Four rows, each containing six cells
- b) Six rows, each containing six cells
- c) Six rows, each containing four cells
- d) Four rows, each containing four cells
Answer: Four rows, each containing six cells
Question:
- a) 6 V
- b) 3 V
- c) 9 V
- d) 12 V
Answer: 6 V
Question:
- a)
- b)
- c)
- d)
Answer:
Question:
- a)
- b)
- c)
- d)
Answer:
Question:
- a)
- b)
- c)
- d)
Answer:
Question:
- a) 4 W
- b) 3.33 W
- c) 1.44 W
- d) 500 W
Answer: 4 W
Question: Two identical bulbs are connected in parallel across an ideal source of emf E. The ammeter A and voltmeter V are ideal. If bulb B2 gets fused, then
- a) Reading of A will decrease but that of V will remain same
- b) Reading of A will decrease but that of V will increase
- c) Reading of A will increase but that of V will remain same
- d) Reading of A will increase and reading of V will also increase
Answer: Reading of A will decrease but that of V will remain same
Question:
- a) 4 W
- b) 2 W
- c) 64 W
- d) 32 W
Answer: 4 W
Question:
- a)
- b)
- c)
- d)
Answer:
Question:
- a) Zero
- b)
- c) E
- d)
Answer:
Zero
Question:
- a) 10 V
- b) 30 V
- c) 15 V
- d) 12 V
Answer: 10 V
Question: When current supplied by a cell to a circuit is 0.3 A, its terminal potential difference is 0.9 V. When the current supplied becomes 0.25 A, its terminal potential difference becomes 1.0 V. The internal resistance of the cell is
- a)
- b)
- c)
- d)
Answer:
Question:
- a)
- b)
- c)
- d)
Answer:
Question: A current of 10 A is maintained in a conductor of cross-section 1 cm2. If the free electron density in the conductor is 9 × 1028 m–3, then drift velocity of free electrons is
- a) 6.94 × 10–6 m/s
- b) 5.94 × 10–2 m/s
- c) 1.94 × 10–3 m/s
- d) 2.94 × 10–4 m/s
Answer: 6.94 × 10–6 m/s
Question:
- a) 5 A
- b) 7.5 A
- c) 10 A
- d) 1 A
Answer: 5 A
Question: Ten 60 W, 220 V bulbs are connected in series to 220 V supply. Power consumed in the circuit is
- a) 6 W
- b) 12 W
- c) 180 W
- d) 600 W
Answer: 6 W
Question:
- a) 1 V
- b) –1 V
- c) 2 V
- d) –2 V
Answer: 1 V
Question:
- a) 10 V
- b) 8 V
- c) 6 V
- d) Zero
Answer: 10 V
Question:
- a) 7 V
- b) 6 V
- c) 5 V
- d) 8 V
Answer: 7 V
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MCQs for Current Electricity Physics Full Syllabus
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