KIRCHHOFF'SLAWS WHEATSTONE BRIDGE
Current Electricity

268246 K irchoff's law of junctions is also called the law of conservation of

1 energy
2 charge
3 momentum
4 angular momentum
Current Electricity

268251 In a wheatstone's bridge three resistances \(P, Q, R\) connected in three arms and the fourth arm is formed by two resitances \(S_{1}, S_{2}\) connected in parallel.T he condition for bridge to be balanced will be

1 \(\frac{P}{Q}=\frac{R}{S_{1}+S_{2}}\)
2 \(\frac{P}{Q}=\frac{2 R}{S_{1}+S_{2}}\)
3 \(\frac{P}{Q}=\frac{R\left(S_{1}+S_{2}\right)}{S_{1} S_{2}}\)
4 \(\frac{P}{Q}=\frac{R\left(S_{1}+S_{2}\right)}{2 S_{1} S_{2}}\)
Current Electricity

268252 **Assertion :** At any junction of a network, algebraic sum of various currents is zero
**Reason :** At steady state there is no accumulation of charge at the junction.

1 Both (A) and (R) are true and (R) is the correct explanation of \(A\).
2 Both (A) and (R) are true but (R) is not the correct explanation of \(A\).
3 (A) is true but (R) is false
4 (A) is false but (R) is true
Current Electricity

268330 Six resistors of each 2 ohm are connected as shown in the figure. The resultant resistance between \(A\) and \(B\) is.

1 \(4 \Omega\)
2 \(2 \Omega\)
3 \(1_{\Omega}\)
4 \(10 \Omega\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Current Electricity

268246 K irchoff's law of junctions is also called the law of conservation of

1 energy
2 charge
3 momentum
4 angular momentum
Current Electricity

268251 In a wheatstone's bridge three resistances \(P, Q, R\) connected in three arms and the fourth arm is formed by two resitances \(S_{1}, S_{2}\) connected in parallel.T he condition for bridge to be balanced will be

1 \(\frac{P}{Q}=\frac{R}{S_{1}+S_{2}}\)
2 \(\frac{P}{Q}=\frac{2 R}{S_{1}+S_{2}}\)
3 \(\frac{P}{Q}=\frac{R\left(S_{1}+S_{2}\right)}{S_{1} S_{2}}\)
4 \(\frac{P}{Q}=\frac{R\left(S_{1}+S_{2}\right)}{2 S_{1} S_{2}}\)
Current Electricity

268252 **Assertion :** At any junction of a network, algebraic sum of various currents is zero
**Reason :** At steady state there is no accumulation of charge at the junction.

1 Both (A) and (R) are true and (R) is the correct explanation of \(A\).
2 Both (A) and (R) are true but (R) is not the correct explanation of \(A\).
3 (A) is true but (R) is false
4 (A) is false but (R) is true
Current Electricity

268330 Six resistors of each 2 ohm are connected as shown in the figure. The resultant resistance between \(A\) and \(B\) is.

1 \(4 \Omega\)
2 \(2 \Omega\)
3 \(1_{\Omega}\)
4 \(10 \Omega\)
Current Electricity

268246 K irchoff's law of junctions is also called the law of conservation of

1 energy
2 charge
3 momentum
4 angular momentum
Current Electricity

268251 In a wheatstone's bridge three resistances \(P, Q, R\) connected in three arms and the fourth arm is formed by two resitances \(S_{1}, S_{2}\) connected in parallel.T he condition for bridge to be balanced will be

1 \(\frac{P}{Q}=\frac{R}{S_{1}+S_{2}}\)
2 \(\frac{P}{Q}=\frac{2 R}{S_{1}+S_{2}}\)
3 \(\frac{P}{Q}=\frac{R\left(S_{1}+S_{2}\right)}{S_{1} S_{2}}\)
4 \(\frac{P}{Q}=\frac{R\left(S_{1}+S_{2}\right)}{2 S_{1} S_{2}}\)
Current Electricity

268252 **Assertion :** At any junction of a network, algebraic sum of various currents is zero
**Reason :** At steady state there is no accumulation of charge at the junction.

1 Both (A) and (R) are true and (R) is the correct explanation of \(A\).
2 Both (A) and (R) are true but (R) is not the correct explanation of \(A\).
3 (A) is true but (R) is false
4 (A) is false but (R) is true
Current Electricity

268330 Six resistors of each 2 ohm are connected as shown in the figure. The resultant resistance between \(A\) and \(B\) is.

1 \(4 \Omega\)
2 \(2 \Omega\)
3 \(1_{\Omega}\)
4 \(10 \Omega\)
Current Electricity

268246 K irchoff's law of junctions is also called the law of conservation of

1 energy
2 charge
3 momentum
4 angular momentum
Current Electricity

268251 In a wheatstone's bridge three resistances \(P, Q, R\) connected in three arms and the fourth arm is formed by two resitances \(S_{1}, S_{2}\) connected in parallel.T he condition for bridge to be balanced will be

1 \(\frac{P}{Q}=\frac{R}{S_{1}+S_{2}}\)
2 \(\frac{P}{Q}=\frac{2 R}{S_{1}+S_{2}}\)
3 \(\frac{P}{Q}=\frac{R\left(S_{1}+S_{2}\right)}{S_{1} S_{2}}\)
4 \(\frac{P}{Q}=\frac{R\left(S_{1}+S_{2}\right)}{2 S_{1} S_{2}}\)
Current Electricity

268252 **Assertion :** At any junction of a network, algebraic sum of various currents is zero
**Reason :** At steady state there is no accumulation of charge at the junction.

1 Both (A) and (R) are true and (R) is the correct explanation of \(A\).
2 Both (A) and (R) are true but (R) is not the correct explanation of \(A\).
3 (A) is true but (R) is false
4 (A) is false but (R) is true
Current Electricity

268330 Six resistors of each 2 ohm are connected as shown in the figure. The resultant resistance between \(A\) and \(B\) is.

1 \(4 \Omega\)
2 \(2 \Omega\)
3 \(1_{\Omega}\)
4 \(10 \Omega\)