Question

Which statement is true for E.(d)M

1.   M.R.R increases with decreasing resistance

2.   M.R.R increases with decreasing capacitance

3.   M.R.R. increases with increasing spark gap

4.   M.R.R. increases with optimum spark gap

Then decreased with increasing spark gap

Select the correct answer using the codes given below

(a) 1,2,3 and 4                (b) 1,2 and 3

(c) 1,3 and 4                   (d) 1,2 and 4