Electrical Instruments
PHXII03:CURRENT ELECTRICITY

357307 A 10\(m\) long wire of resistance \(20\Omega \) is connected in series with a battery of emf 3\(V\) and a resisstance of \(10\Omega \). The potential gradient along the wire in \(V\)/\(m\) is

1 \(1.2\)
2 \(0.10\)
3 \(0.02\)
4 \(0.20\)
PHXII03:CURRENT ELECTRICITY

357308 A battery of emf \({E_0} = 12V\) is connected across a 4 \(m\) long uniform wire having resistance \(4\left( {\frac{\Omega }{m}} \right).\) The cells of small emf’s \({\varepsilon _1} = 2V\) and \({\varepsilon _2} = 4V\) having internal resistance \(2\Omega \) and \(4\Omega \) respectively, are connected as shown in the figure. If galvanometer shows no deflection at the point \(N\), the distance of point \(N\) from the point \(A\) is equal to
supporting img

1 \(\frac{1}{6}m\)
2 \(\frac{1}{3}m\)
3 \(\frac{4}{3}{\text{m}}\)
4 \(\frac{1}{2}{\text{m}}\)
PHXII03:CURRENT ELECTRICITY

357309 A potential divider circuit is shown in figure. The output voltage \(V_{0}\) is
supporting img

1 \(12\,mV\)
2 \(2\,mV\)
3 \(4\,V\)
4 \(0.5\,V\)
PHXII03:CURRENT ELECTRICITY

357310 A potentiometer wire has length \(L\). For given cell of emf \(E\), the balancing length is \(\frac{L}{3}\) from the positive end of the wire. If the length of potentiometer wire is increased by 50%, then for the same cell, the balance point is obtained at length

1 \(\frac{L}{2}\) from positive end
2 \(\frac{L}{5}\) from positive end
3 \(\frac{L}{3}\) from positive end
4 \(\frac{L}{4}\) from positive end
PHXII03:CURRENT ELECTRICITY

357307 A 10\(m\) long wire of resistance \(20\Omega \) is connected in series with a battery of emf 3\(V\) and a resisstance of \(10\Omega \). The potential gradient along the wire in \(V\)/\(m\) is

1 \(1.2\)
2 \(0.10\)
3 \(0.02\)
4 \(0.20\)
PHXII03:CURRENT ELECTRICITY

357308 A battery of emf \({E_0} = 12V\) is connected across a 4 \(m\) long uniform wire having resistance \(4\left( {\frac{\Omega }{m}} \right).\) The cells of small emf’s \({\varepsilon _1} = 2V\) and \({\varepsilon _2} = 4V\) having internal resistance \(2\Omega \) and \(4\Omega \) respectively, are connected as shown in the figure. If galvanometer shows no deflection at the point \(N\), the distance of point \(N\) from the point \(A\) is equal to
supporting img

1 \(\frac{1}{6}m\)
2 \(\frac{1}{3}m\)
3 \(\frac{4}{3}{\text{m}}\)
4 \(\frac{1}{2}{\text{m}}\)
PHXII03:CURRENT ELECTRICITY

357309 A potential divider circuit is shown in figure. The output voltage \(V_{0}\) is
supporting img

1 \(12\,mV\)
2 \(2\,mV\)
3 \(4\,V\)
4 \(0.5\,V\)
PHXII03:CURRENT ELECTRICITY

357310 A potentiometer wire has length \(L\). For given cell of emf \(E\), the balancing length is \(\frac{L}{3}\) from the positive end of the wire. If the length of potentiometer wire is increased by 50%, then for the same cell, the balance point is obtained at length

1 \(\frac{L}{2}\) from positive end
2 \(\frac{L}{5}\) from positive end
3 \(\frac{L}{3}\) from positive end
4 \(\frac{L}{4}\) from positive end
PHXII03:CURRENT ELECTRICITY

357307 A 10\(m\) long wire of resistance \(20\Omega \) is connected in series with a battery of emf 3\(V\) and a resisstance of \(10\Omega \). The potential gradient along the wire in \(V\)/\(m\) is

1 \(1.2\)
2 \(0.10\)
3 \(0.02\)
4 \(0.20\)
PHXII03:CURRENT ELECTRICITY

357308 A battery of emf \({E_0} = 12V\) is connected across a 4 \(m\) long uniform wire having resistance \(4\left( {\frac{\Omega }{m}} \right).\) The cells of small emf’s \({\varepsilon _1} = 2V\) and \({\varepsilon _2} = 4V\) having internal resistance \(2\Omega \) and \(4\Omega \) respectively, are connected as shown in the figure. If galvanometer shows no deflection at the point \(N\), the distance of point \(N\) from the point \(A\) is equal to
supporting img

1 \(\frac{1}{6}m\)
2 \(\frac{1}{3}m\)
3 \(\frac{4}{3}{\text{m}}\)
4 \(\frac{1}{2}{\text{m}}\)
PHXII03:CURRENT ELECTRICITY

357309 A potential divider circuit is shown in figure. The output voltage \(V_{0}\) is
supporting img

1 \(12\,mV\)
2 \(2\,mV\)
3 \(4\,V\)
4 \(0.5\,V\)
PHXII03:CURRENT ELECTRICITY

357310 A potentiometer wire has length \(L\). For given cell of emf \(E\), the balancing length is \(\frac{L}{3}\) from the positive end of the wire. If the length of potentiometer wire is increased by 50%, then for the same cell, the balance point is obtained at length

1 \(\frac{L}{2}\) from positive end
2 \(\frac{L}{5}\) from positive end
3 \(\frac{L}{3}\) from positive end
4 \(\frac{L}{4}\) from positive end
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PHXII03:CURRENT ELECTRICITY

357307 A 10\(m\) long wire of resistance \(20\Omega \) is connected in series with a battery of emf 3\(V\) and a resisstance of \(10\Omega \). The potential gradient along the wire in \(V\)/\(m\) is

1 \(1.2\)
2 \(0.10\)
3 \(0.02\)
4 \(0.20\)
PHXII03:CURRENT ELECTRICITY

357308 A battery of emf \({E_0} = 12V\) is connected across a 4 \(m\) long uniform wire having resistance \(4\left( {\frac{\Omega }{m}} \right).\) The cells of small emf’s \({\varepsilon _1} = 2V\) and \({\varepsilon _2} = 4V\) having internal resistance \(2\Omega \) and \(4\Omega \) respectively, are connected as shown in the figure. If galvanometer shows no deflection at the point \(N\), the distance of point \(N\) from the point \(A\) is equal to
supporting img

1 \(\frac{1}{6}m\)
2 \(\frac{1}{3}m\)
3 \(\frac{4}{3}{\text{m}}\)
4 \(\frac{1}{2}{\text{m}}\)
PHXII03:CURRENT ELECTRICITY

357309 A potential divider circuit is shown in figure. The output voltage \(V_{0}\) is
supporting img

1 \(12\,mV\)
2 \(2\,mV\)
3 \(4\,V\)
4 \(0.5\,V\)
PHXII03:CURRENT ELECTRICITY

357310 A potentiometer wire has length \(L\). For given cell of emf \(E\), the balancing length is \(\frac{L}{3}\) from the positive end of the wire. If the length of potentiometer wire is increased by 50%, then for the same cell, the balance point is obtained at length

1 \(\frac{L}{2}\) from positive end
2 \(\frac{L}{5}\) from positive end
3 \(\frac{L}{3}\) from positive end
4 \(\frac{L}{4}\) from positive end