A wire of resistance R is connected to an EMF source E. The charge flowing in the resistor is time-dependent as Q = at - bt2. The heat dissipated in the wire will be ________.
1
\(\frac {b^3R}{3a}\)
2
\(\frac {b^3R}{6a}\)
3
\(\frac {a^3R}{6b}\)
4
\(\frac {a^3R}{3b}\)
5
none of these