Heating Effect of Current

Given below are two statements :
Statement I : A uniform wire of resistance $80 \mathrm{\Omega }$ is cut into four equal parts. These parts are now connected in parallel. The equivalent resistance of the combination will be $5 \mathrm{\Omega }$.

Statement II : Two resistance $2R$ and $3R$ are connected in parallel in an electric circuit. The value of thermal energy developed in $3R$ and $2R$ will be in the ratio $3:2$.

In the light of the above statements, choose the most appropriate answer from the options given below

A direct current of $4 \mathrm{A}$ and an alternating current of peak value $4 \mathrm{A}$ flow through resistance of $3 \mathrm{\Omega }$ and $2 \mathrm{\Omega }$ respectively. The ratio of heat produced in the two resistances in same interval of time will be :

A bulb of $100 \mathrm{W}$ rating is connected with $220 \mathrm{V}$ supply. The resistance of bulb is

The emf of a car battery is $12 \mathrm{V}$. If internal resistance of battery is $0.4 \mathrm{\Omega }$, then maximum power drawn from battery is _____ $\mathrm{W}$.

Two bulbs $25 \mathrm{W}-220 \mathrm{V}$ and $100 \mathrm{W}-220 \mathrm{V}$ are given. Which has higher resistance?

Find out the expression for heat produced in a conductor due to flow of current.

State joules law of heating ? Write any two applications of heating effect of electric current​.

According to Joule's law of heating, mention the factors on which heat produced in a resistor depends. According to this law write the formula used to calculate the heat produced. 
 
 
 
 
 
 
 

From below which one is the equation for Joule's law of heating effect of electricity ?
 
 
 
 
 
 

What is Joule’s heating effect ? 

Consider the circuit shown in the figure. In which resistor the amount of power dissipated is the largest ?

An electric iron of $750 \mathrm{W}$ Power is connected to a $220 \mathrm{V}$ Mains. The current drawn by the iron is nearly.

In Joules's heating law, when $R$, and $t$, are constant. If $H$, is taken along the $y$, axis and $I^2$,along $x$,axis. The graph is

Two heating wires of equal length are first connected in series and then in parallel. If the combinations are separately connected across the same time. The ratio of heat produced in the first case to that on the second is. 

Three equal resistors connected in series with a source of emf together dissipate $10 \mathrm{W}$ of power. The power dissipated by these resistors connected in parallel will be

Of the two bulbs used in a house one glows more brightly than the other. Then which of the following statements is true ?

An electric iron of $750 \mathrm{W}$ Power is connected to a $220 \mathrm{V}$ Mains. The current drawn by the iron is nearly.

Three equal resistors connected in series with a source of emf to-gather dissipate $10 \mathrm{W}$ of power. The power dissipated by these resistors connected in parallel will be

Four bulbs $B_1$, $B_2$, $B_3$ and $B_4$ of $100 \mathrm{W}$ each are connected to $220 \mathrm{V}$ main as shown in the figure. The reading in an ideal ammeter will be

An electric iron of $750 \mathrm{W}$ Power is connected to a $220 \mathrm{V}$ Mains. The current drawn by the iron is nearly.