Calculate Voltage A Bulb Uses
var voltage, current, resistance; function calculateVoltage() {\n current = document.getElementById(‘current’).value;\n resistance = document.getElementById(‘resistance’).value;\n\n if (current == ”) {\n document.getElementById(‘error1’).innerHTML = ‘Please enter a value’;\n } else if (current < 0) {\n document.getElementById('error1').innerHTML = 'Please enter a positive value';\n } else {\n document.getElementById('error1').innerHTML = '';\n }\n\n if (resistance == '') {\n document.getElementById('error2').innerHTML = 'Please enter a ... Read more