NEET Physics is the very imporatant paper in the Medical Entrance EXAM. Here, you will discover the NEET Physics MCQs with Answers for all Concepts as per the new syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution . NEET Physics Current Electricity Multiple Choice Questions
MCQs on Current Electricity :
1. What does the internal resistance of a cell mean?
(A) The resistance of the material used in the cell
(B) The vessel of the cell
(C) The electrodes of the cell
(D) The electrolyte used in the cell
Answer
Answer: (D) The electrolyte used in the cell
2. A potentiometer is considered a versatile and accurate device to make an electrical measurement of EMF. Why?
(A) Because the method involves a combination
(B) There are cells involved
(C) Because of potential gradients
(D) As there is no flow of current through the galvanometer
Answer
Answer: (D) As there is no flow of current through the galvanometer
3. Consider copper and aluminium wire whose length and resistance are the same. Also, the specific resistance of aluminium is more than copper. Select the correct statement
(A) Copper and aluminium mass are the same
(B) Copper wire has more mass than the aluminium wire
(C) Copper wire has less mass than the aluminium wire
(D) The information given is incomplete
Answer
Answer: (D) The information given is incomplete
4. Following is the graph which represents the thermo EMF of two different metals which are joined end to end. One end of the metal is kept at a constant temperature while the other end is heated at very high temperature.
Answer
Answer: (D)
5. Select the graph which depicts the variation in thermoelectric power and the temperature difference between the hot and cold junction in the thermocouples
Answer
Answer: (A)
6. Which of the following represents the relationship between the current flowing, i through the electric heater and the time taken, t.
Answer
Answer: (B)
7. Consider three voltmeters A, B, and C with resistance R, 1.5R, and 3R respectively. Potential difference is applied across the points X and Y, the voltmeter readings are VA, VB, and VC.
(A) VA = VB ≠ VC
(B) VA ≠ VB ≠ VC
(C) VA = VB = VC
(D) VA ≠ VB = VC
Answer
Answer: (C) VA = VB = VC
8. What is the ratio of power dissipated if two electric bulbs are connected in series and the ratio of their resistance is 1:2?
(A) 1:4
(B) 1:2
(C) 2:1
(D) 1: 1
Answer
Answer: (B) 1:2
9. Following is the Wheatstone bridge in which (frac{P}{Q}=frac{R}{S}). Let K be the key which is closed, so what will be the deflection shown by galvanometer?
(A) The deflection happens in either side
(B) There is no deflection
(C) Deflection happens on the right side
(D) Deflection happens on the left side
Answer
Answer: (A) The deflection happens in either side
10. What is the principle behind thermocouple
(A) Joule effect
(B) Thomson effect
(C) Seebeck effect
(D) Peltier effect
Answer
Answer: (C) Seebeck effect
11. According to Faraday’s laws of electrolysis, to which of the following is the amount of decomposition proportional to?
Answer
Answer: (A) The electrochemical equivalent of the substance