152018 In the circuit shown assume the diode to be ideal. When $V_{i}$ increases from $2 V$ to $6 V$, the change in the current is (in $\mathbf{m A}$ )

152019 The effective resistance between $A$ and $B$ in the figure is $\frac{7}{12} \Omega$ if each side of the cube has $1 \Omega$ resistance. The effective resistance between the same two points, when the link $A B$ is removed, is

152020 Two equal resistances, $400 \quad \Omega$ each, are connected in series with a $8 \mathrm{~V}$ battery. If the resistance of first one increases by $0.5 \%$, the change required in the resistance of the second one in order to keep the potential difference across it unaltered is to

152021 Two wires of same radius having lengths $l_{1}$ and $l_{2}$ and resistivities $\rho_{1}$ and $\rho_{2}$ are connected in series. The equivalent resistivity will be

152022 A metal wire of circular cross-section has a resistance $R_{1}$. The wire is now stretched without breaking, so that its length is doubled and the density is assumed to remain the same. If the resistance of the wire now becomes $R_{2}$, then $\mathbf{R}_{\mathbf{2}}: \mathbf{R}_{\mathbf{1}}$

152018 In the circuit shown assume the diode to be ideal. When $V_{i}$ increases from $2 V$ to $6 V$, the change in the current is (in $\mathbf{m A}$ )

152019 The effective resistance between $A$ and $B$ in the figure is $\frac{7}{12} \Omega$ if each side of the cube has $1 \Omega$ resistance. The effective resistance between the same two points, when the link $A B$ is removed, is

152020 Two equal resistances, $400 \quad \Omega$ each, are connected in series with a $8 \mathrm{~V}$ battery. If the resistance of first one increases by $0.5 \%$, the change required in the resistance of the second one in order to keep the potential difference across it unaltered is to

152021 Two wires of same radius having lengths $l_{1}$ and $l_{2}$ and resistivities $\rho_{1}$ and $\rho_{2}$ are connected in series. The equivalent resistivity will be

152022 A metal wire of circular cross-section has a resistance $R_{1}$. The wire is now stretched without breaking, so that its length is doubled and the density is assumed to remain the same. If the resistance of the wire now becomes $R_{2}$, then $\mathbf{R}_{\mathbf{2}}: \mathbf{R}_{\mathbf{1}}$

152018 In the circuit shown assume the diode to be ideal. When $V_{i}$ increases from $2 V$ to $6 V$, the change in the current is (in $\mathbf{m A}$ )

152019 The effective resistance between $A$ and $B$ in the figure is $\frac{7}{12} \Omega$ if each side of the cube has $1 \Omega$ resistance. The effective resistance between the same two points, when the link $A B$ is removed, is

152020 Two equal resistances, $400 \quad \Omega$ each, are connected in series with a $8 \mathrm{~V}$ battery. If the resistance of first one increases by $0.5 \%$, the change required in the resistance of the second one in order to keep the potential difference across it unaltered is to

152021 Two wires of same radius having lengths $l_{1}$ and $l_{2}$ and resistivities $\rho_{1}$ and $\rho_{2}$ are connected in series. The equivalent resistivity will be

152022 A metal wire of circular cross-section has a resistance $R_{1}$. The wire is now stretched without breaking, so that its length is doubled and the density is assumed to remain the same. If the resistance of the wire now becomes $R_{2}$, then $\mathbf{R}_{\mathbf{2}}: \mathbf{R}_{\mathbf{1}}$

152018 In the circuit shown assume the diode to be ideal. When $V_{i}$ increases from $2 V$ to $6 V$, the change in the current is (in $\mathbf{m A}$ )

152019 The effective resistance between $A$ and $B$ in the figure is $\frac{7}{12} \Omega$ if each side of the cube has $1 \Omega$ resistance. The effective resistance between the same two points, when the link $A B$ is removed, is

152020 Two equal resistances, $400 \quad \Omega$ each, are connected in series with a $8 \mathrm{~V}$ battery. If the resistance of first one increases by $0.5 \%$, the change required in the resistance of the second one in order to keep the potential difference across it unaltered is to

152021 Two wires of same radius having lengths $l_{1}$ and $l_{2}$ and resistivities $\rho_{1}$ and $\rho_{2}$ are connected in series. The equivalent resistivity will be

152022 A metal wire of circular cross-section has a resistance $R_{1}$. The wire is now stretched without breaking, so that its length is doubled and the density is assumed to remain the same. If the resistance of the wire now becomes $R_{2}$, then $\mathbf{R}_{\mathbf{2}}: \mathbf{R}_{\mathbf{1}}$

152018 In the circuit shown assume the diode to be ideal. When $V_{i}$ increases from $2 V$ to $6 V$, the change in the current is (in $\mathbf{m A}$ )

152019 The effective resistance between $A$ and $B$ in the figure is $\frac{7}{12} \Omega$ if each side of the cube has $1 \Omega$ resistance. The effective resistance between the same two points, when the link $A B$ is removed, is

152020 Two equal resistances, $400 \quad \Omega$ each, are connected in series with a $8 \mathrm{~V}$ battery. If the resistance of first one increases by $0.5 \%$, the change required in the resistance of the second one in order to keep the potential difference across it unaltered is to

152021 Two wires of same radius having lengths $l_{1}$ and $l_{2}$ and resistivities $\rho_{1}$ and $\rho_{2}$ are connected in series. The equivalent resistivity will be

152022 A metal wire of circular cross-section has a resistance $R_{1}$. The wire is now stretched without breaking, so that its length is doubled and the density is assumed to remain the same. If the resistance of the wire now becomes $R_{2}$, then $\mathbf{R}_{\mathbf{2}}: \mathbf{R}_{\mathbf{1}}$