In the equation is pressure, Y is volume, R is universal gas constant and T is temperature. The physical quantity equivalent to the ratio a/b is :  
(1) Energy 
(2) Impulse 
(3) Pressure gradient
(4) Coefficient of viscosity                                                                                                                                                                                                                                                    JEE-2024   
Solution:                
In the equation is pressure, Y is volume, R is universal gas constant and T is temperature. The physical quantity equivalent to the ratio a/b is : (1) Energy (2) Impulse (3) Pressure gradient (4) Coefficient of viscosity JEE-2024

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The magnetic field at the centre of a wire loop formed by two semi circular wires of radii R1 = 2 πm and R2 = 4π m carrying current I = 4A as per figure  given below is  a × 10^–7 T. The value of a is  ______. (Centre O is common for all segments)           

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