Electric Current and Current Density

JEE Main Physics · Current Electricity · 5 questions, latest first

• Current passing through a wire as function of time is given as I(t)=0.02 t+0.01 A. The charge that will flow through the wire…20254 April, Shift 1 · Q39
• The number of electrons flowing per second in the filament of a 110 W bulb operating at 220 V is: (Given e=1.6 × 10^-19 C )20246 April, Shift 2 · Q43
• The current in a conductor is expressed as I=3 t^2+4 t^3, where I is in Ampere and t is in second. The amount of electric charge…20241 February, Shift 1 · Q56
• The electric current through a wire varies with time as I=I_0+β t, where I_0=20 A and β=3 A / s. The amount of electric charge…202429 January, Shift 1 · Q41
• The charge flowing in a conductor changes with time as Q(t)=α t-β t^2+γ t^3. Where α, β and γ are constants. Minimum value of…202330 January, Shift 1 · Q11