What is meant by equivalent resistance ?
What is meant by equivalent resistance ?
It is the combination of a number of resistances.
Similar Questions
A cylinder of a material is $10\, cm$ long and has a cross-section of $2\, cm ^{2}$. If its resistance along the length be $20\, ohm$ what will be its resistivity in number and units ?
A cylinder of a material is $10\, cm$ long and has a cross-section of $2\, cm ^{2}$. If its resistance along the length be $20\, ohm$ what will be its resistivity in number and units ?
Three $2 \,\Omega$ resistors, $A, B$ and $C,$ are connected as shown in figure. Each of them dissipates energy and can withstand a maximum power of $18 \,W$ without melting. Find the maximum current that can flow through the three resistors.
Three $2 \,\Omega$ resistors, $A, B$ and $C,$ are connected as shown in figure. Each of them dissipates energy and can withstand a maximum power of $18 \,W$ without melting. Find the maximum current that can flow through the three resistors.
Give two practical applications of heating effect of current.
Give two practical applications of heating effect of current.
Potential is positive of positively charged body and is negative of a negatively charged body.
Potential is positive of positively charged body and is negative of a negatively charged body.
If five equal pieces of wire having $5\, \Omega$ resistance are made and connected in parallel, then their equivalent resistance will be $......$
If five equal pieces of wire having $5\, \Omega$ resistance are made and connected in parallel, then their equivalent resistance will be $......$