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Consider the following statements.
1. Magnetic lines of force are closed curves while electric lines are not.
2. Electric lines of force are closed curves while magnetic lines are not.
3. Both electric and magnetic lines of force are closed curves.
Which of statement(s) given above is/are correct?
With reference to the properties of the magnetic lines of force, consider the following statements: 1. Magnetic lines of force outside the magnet, are from the north pole to the south pole. 2. If magnetic lines of force are parallel and equidistant, the magnetic field is uniform. Which of the following statements given above is/are correct?
Consider the following regarding the Magnetic Lines of force.  I. They are closed curves.  II. If the lines of force are crowded at a place, the field is strong.  III. If the lines of force are parallel and equidistant, the field is uniform.  Which among the above is/are correct regarding magnetic lines of force? 
Consider the following statement: a) Magnetic field lines are always form closed curve. b) Magnetic field lines start from north pole outside the magnet c) Magnetic field lines start from south pole outside the magnet Which of the following is a property of magnetic field lines?
The statement concern psychrometric chart. 1. Constant relative humidity lines are uphill straight lines to the right 2. Constant wet bulb temperature lines are downhill straight lines to the right. 3. Constant specific volume lines are downhill straight lines to the right. 4. Constant enthalpy lines are coincident with constant wet bulb temperature lines. Which of the statements are correct?
In the following question, two statements are numbered as A and B. On solving these statements, we get quantities A and B respectively. Solve both quantities and choose the correct option. Quantity A: A can do a piece of work in 10 days and B can do the same work in 15 days. They start working together and after 4 days, A left the work. Find in how many days the total work will be completed. Quantity B: P can do a piece of work in 15 days and Q can do the same work in 25 days. They start working together and after 5 days, Q left the work. Find in how many days the remaining work will gets completed.
‘P’ taken 16 days to finish a piece of work. ‘Q’ takes 24 days to finish the same piece of work.  'R' takes 48 days to finish the same piece of work. How many days will all three of them together take to finish the same piece of work?
K and L can complete a piece of work together in 15 days. K starts working and works for 10 days to complete two-fifth piece of work. L completes the remaining piece of work. The per-day wages paid to L  is Rs. 200. How much does L earn from completion of the remaining piece of work?
A alone can do a piece of work in 10 days, A and B together can do the same piece of work in 20/3 days. A, B and C together can do the same piece of work in 40/7 days. In how many days can B and C together do the same piece of work?
18 men can complete a piece of work in 63 days. 9 women take 189 days to complete the same piece of work. How many days will 4 men, 9 women and 12 children together take to complete the piece of work if 7 children alone can complete the piece of work in 486 days ?