An electric current ( ) flowing through a metallic wire is gradually increased. The graph of…
Physics20231 markMCQ
An electric current ($I$) flowing through a metallic wire is gradually increased. The graph of heating power ($P$) developed in it versus the current ($I$) is:
(a)graph showing a straight line starting from origin
(b)graph showing a decaying curve
(c)graph showing a parabolic curve opening upwards along y-axis
(d)graph showing a straight line with negative slope
