`1Kwh`=_____Joule
(A)`3.6J`
(B)`3600J`
(C)`3.6times10^6J`
(D)`360J`

1 kWH= _____ J

The average thermal energy of oxygen at a temperature of 27C (А) 6.2times10^(-21) J (В) 4.5times10^(-21) J (C) 3.5times10^(-21) J (D) 1.2times10^(-21) J

A 15pF capacitor is connected to a 60V battery.How much electrostatic energy is stored? (A) 2.70times10^(-8)J (B) 1.77times10^(-8)J (C) 2.35times10^(-8)J (D) 1.35times10^(-8)J

A time dependent force F=3t^(2)+6t acts on a particle of mass 18kg .If particle starts from rest the work done by the force during the first 3 second will be : (A) 40.5J (B) 324J (C) 81J (D) 262J

10kWh = ……….J

Force displacement graph of a particle starting from rest is given in the figure shown.The kinetic energy of particle at x=3m is: (A) 6.5 J (B) 7.5 J (C) 6 J (D) 5 J

A vector of magnitude 10 along the normal to the curve 3x^(2)+8xy+2y^(2)-3=0 at its point P(1,0) can be (A) 6hat i+8hat j(B)-8hat i+3hat j(C)6hat i-8hat j(D)8hat i+6hat j

Let a_i^2+b_i^2+c_i^2=1 (for i=1,2,3) and a_ia_j+b_ib_j+c_ic_j=0 (i != j;i,j=1,2,3). Then the absolute value of determinant |(a_1,a_2,a_3),(b_1,b_2,b_3),(c_1,c_2,c_3)| (A) 1/2 (B) 0 (C) 1 (D) 2