So, - 5 i2 - Voc that = 0 that means, your Voc = VThevenin; this = youR30 i1 - 5 i2. Now put i1 value = this much and i2 value = this much you will get VThevenin voltage . .
तो,- 5 i2 - Voc कि = 0 अर्थात, आपका Voc = VThevenin; यह = R30 i1 - 5 i2। अब i1 वैल्यू = यह और i2 वैल्यू = इस पर आपको VThevenin वोल्टेज मिलेगा।