1.18 The circuit shown in Fig. P1.18 represents the equivalent circuit of an unbalanced bridge. Such equivalent circuits arise, for example, in pressure sensors where the resisances R1−4 vary with pressure and the output signal is observed across terminals 1 and 2. It is required to calculate the current in the detector branch (R5) and the voltage across it. Although this can be done by using loop and node equations, a much easier approach is possible: Find the Thévenin equivalent of the circuit to the left of node 1 and the Thévenin equivalent of the circuit to the right of node 2. Then solve the resulting simplified circuit. - electricalstudent

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1.18 The circuit shown in Fig. P1.18 represents the equivalent circuit of an unbalanced bridge. Such equivalent circuits arise, for example, in pressure sensors where the resisances R1−4 vary with pressure and the output signal is observed across terminals 1 and 2. It is required to calculate the current in the detector branch (R5) and the voltage across it. Although this can be done by using loop and node equations, a much easier approach is possible: Find the Thévenin equivalent of the circuit to the left of node 1 and the Thévenin equivalent of the circuit to the right of node 2. Then solve the resulting simplified circuit.

1.18 The circuit shown in Fig. P1.18 represents the equivalent circuit of an unbalanced bridge. Such equivalent circuits arise, for example, in pressure sensors where the resisances R1−4 vary with pressure and the output signal is observed across terminals 1 and 2. It is required to calculate the current in the detector branch (R5) and the voltage across it. Although this can be done by using loop and node equations, a much easier approach is possible: Find the Thévenin equivalent of the circuit to the left of node 1 and the Thévenin equivalent of the circuit to the right of node 2. Then solve the resulting simplified circuit.

1.18 The circuit shown in Fig. P1.18 represents the equivalent circuit of an unbalanced bridge. Such equivalent circuits arise, for example, in pressure sensors where the resisances R1−4 vary with pressure and the output signal is observed across terminals 1 and 2. It is required to calculate the current in the detector branch (R5) and the voltage across it. Although this can be done by using loop and node equations, a much easier approach is possible: Find the Thévenin equivalent of the circuit to the left of node 1 and the Thévenin equivalent of the circuit to the right of node 2. Then solve the resulting simplified circuit.